Midcontinent ISO Grid Constraint Dashboard

Zone-level constraint analysis with DER investment recommendations
2025
Analysis Year
306,600
LMP Data Points
35
Zones Analyzed
Transmission: 9 Generation: 4 Both: 2 Unconstrained: 20
Classification Distribution

Interactive Constraint Map

Zone Classifications & Scores

Click a row to expand DER recommendations. Click column headers to sort.

Zone Classification T-Score G-Score Congestion $/MWh Max Congestion Constrained Hrs % Annual Hrs
ALTEunconstrained0.24590.4000$3.54$106.0350.0%4,384
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($14.59/MWh).

ALTE (peak: $14.59/MWh)
01234567891011121314151617181920212223
Jan$3.40$3.76$3.86$4.12$4.52$4.78$5.33$6.41$3.87$3.09$2.75$2.48$2.28$2.19$2.19$2.16$1.87$1.95$2.22$2.27$2.34$2.70$2.85$2.58
Feb$1.74$1.83$1.94$1.98$2.34$2.19$2.64$2.94$2.38$1.56$1.22$1.09$1.15$1.11$1.21$1.20$0.98$0.93$0.99$1.36$1.40$1.40$1.36$1.48
Mar$3.66$3.55$3.70$3.99$4.39$4.89$5.93$4.82$3.67$3.97$3.82$4.10$4.41$4.65$5.17$5.63$5.43$5.16$4.56$4.32$4.00$3.48$3.69$3.78
Apr$3.80$3.96$4.15$4.39$4.56$5.08$4.32$3.07$3.56$3.77$4.05$4.52$4.92$5.39$6.11$6.92$7.24$6.53$5.41$5.28$3.86$3.13$2.94$3.33
May$1.39$1.36$1.30$1.36$1.62$1.32$1.37$1.54$1.83$2.37$3.03$4.41$5.90$9.38$12.69$14.43$14.59$11.68$8.61$7.87$5.12$2.59$1.89$1.41
Jun$1.01$0.83$0.78$0.72$0.78$1.26$1.47$1.28$1.93$2.20$3.51$5.55$8.68$10.32$11.27$12.30$10.90$8.38$5.88$4.18$3.08$1.58$1.27$1.08
Jul$1.18$1.02$0.91$0.94$1.23$1.32$1.57$1.37$1.95$2.67$2.76$3.16$3.43$4.01$3.64$4.83$5.42$3.58$3.45$3.80$3.02$1.59$1.05$1.07
Aug$0.81$0.58$0.48$0.46$0.53$0.79$1.08$1.10$1.35$1.73$2.63$3.35$3.89$4.94$5.01$5.00$4.82$3.47$5.91$5.72$3.81$2.68$1.64$1.18
Sep$1.14$1.13$1.13$1.47$2.02$2.33$1.34$0.97$1.33$1.91$2.24$2.63$3.02$3.26$3.73$3.86$3.57$2.63$3.47$2.35$1.42$0.91$1.05$0.87
Oct$4.84$4.75$5.06$6.06$7.10$7.25$6.29$4.13$3.00$2.82$2.82$2.92$3.45$3.57$4.18$4.63$5.53$6.44$4.90$3.20$2.51$2.27$2.95$3.30
Nov$3.91$3.98$4.28$4.55$4.69$4.85$5.96$6.06$2.62$2.45$2.34$2.39$2.49$2.70$2.71$3.20$3.79$4.96$4.59$4.23$3.52$3.65$3.34$3.61
Dec$5.19$5.08$5.38$5.68$5.72$5.51$6.96$6.10$4.23$3.53$2.54$2.11$1.86$1.99$1.94$2.33$3.27$4.10$3.88$4.34$4.79$4.49$4.81$4.81
ALTWboth0.52490.6000$10.73$140.1872.5%6,348
Zones with both transmission and generation constraints benefit from a diversified DER portfolio. Dispatchable resources handle acute congestion events while consistent resources address the structural supply deficit.
PrimarydispatchableBattery Storage, Demand Response
Addresses acute congestion and generation shortfalls
SecondaryconsistentEnergy Efficiency (Metered), Weatherization
Reduces chronic load, easing both transmission and generation stress
TertiaryvariableSolar PV
Adds local supply during daylight hours

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($28.42/MWh).

ALTW (peak: $28.42/MWh)
01234567891011121314151617181920212223
Jan$19.98$19.67$19.33$18.86$19.46$20.23$22.99$28.42$22.23$18.08$15.75$14.69$14.33$15.15$14.97$15.40$16.88$20.20$21.93$22.32$21.38$20.44$19.33$17.96
Feb$9.57$9.41$9.37$9.84$10.56$10.60$11.56$14.15$10.55$8.07$7.22$6.58$6.50$6.71$7.09$6.82$6.69$7.00$7.58$8.47$8.12$8.23$8.51$7.90
Mar$12.12$11.55$11.34$11.42$11.80$13.06$16.79$14.13$10.50$9.26$8.56$8.91$9.32$10.14$10.91$12.11$12.64$13.58$15.21$15.20$13.99$13.09$12.93$12.19
Apr$15.36$15.01$15.03$15.55$16.41$18.66$17.47$13.92$11.84$11.00$11.28$12.11$12.67$13.29$14.14$15.16$15.44$14.99$15.58$15.82$13.41$12.79$13.32$13.70
May$8.98$8.45$8.19$7.99$8.12$8.15$7.57$7.13$7.00$7.33$7.45$9.01$11.13$14.73$18.21$20.71$20.95$18.95$17.22$16.99$13.86$10.71$10.66$9.87
Jun$6.95$5.91$5.80$5.17$5.05$5.45$5.56$4.92$5.52$5.86$7.06$9.48$12.69$15.10$17.13$18.23$18.62$17.29$16.05$14.23$11.02$8.47$7.73$6.99
Jul$4.50$3.41$2.93$2.56$2.68$2.78$2.75$2.24$2.06$2.18$2.96$4.35$5.34$6.76$7.11$8.37$9.44$10.15$10.67$9.70$7.21$5.34$5.31$4.90
Aug$3.98$2.91$2.41$2.29$1.98$2.50$3.32$3.49$3.71$4.98$5.60$6.25$7.11$9.24$9.56$10.74$11.76$13.08$17.44$14.00$10.23$8.20$6.27$4.92
Sep$5.77$5.28$4.89$4.66$5.02$5.53$5.66$4.58$3.89$4.18$4.70$4.85$5.07$5.81$6.69$7.11$7.56$8.36$11.15$7.57$7.30$6.63$6.76$5.97
Oct$11.20$10.87$10.60$10.99$11.84$13.63$14.72$12.64$8.97$8.16$8.80$8.80$9.49$10.01$10.75$11.06$12.30$16.25$14.55$11.78$12.14$12.24$12.62$12.07
Nov$10.59$10.07$9.94$10.30$10.53$11.24$13.63$15.19$9.51$8.42$7.66$7.33$7.75$7.83$7.99$8.31$10.38$13.31$12.74$11.93$11.40$11.47$10.92$10.82
Dec$11.90$10.54$10.28$10.27$10.31$11.41$15.17$15.07$13.70$11.38$9.75$9.05$8.54$9.20$9.47$10.80$14.27$19.36$18.26$18.11$16.99$14.54$14.15$12.14
AMILunconstrained0.22730.4164$2.27$106.5533.6%2,939
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($12.92/MWh).

AMIL (peak: $12.92/MWh)
01234567891011121314151617181920212223
Jan$2.33$2.44$2.46$2.21$2.25$2.33$3.37$5.18$4.20$2.85$2.22$2.24$2.06$1.95$1.85$1.90$2.08$2.70$3.20$3.60$3.44$2.76$2.51$2.09
Feb$1.88$2.02$2.07$2.00$2.10$1.98$2.00$2.55$1.98$1.48$1.35$1.40$1.36$1.31$1.17$1.25$1.17$1.05$1.55$1.73$1.44$1.39$1.43$1.43
Mar$3.04$2.80$2.75$2.59$2.62$3.18$3.66$3.20$2.73$2.51$2.25$2.44$2.48$2.61$2.77$2.98$3.17$3.38$3.60$3.94$3.51$3.33$3.36$3.02
Apr$3.34$3.10$3.33$3.49$4.47$5.68$6.08$4.46$3.63$3.33$3.42$3.85$4.27$4.34$4.93$5.62$5.40$5.05$3.80$3.90$3.40$3.32$3.47$3.44
May$1.49$1.49$1.39$1.21$1.27$1.26$1.40$1.21$1.27$1.44$2.07$3.50$5.08$8.40$11.57$12.92$12.35$9.73$6.63$6.78$4.45$2.40$1.67$1.76
Jun$0.47$0.48$0.47$0.42$0.43$0.54$0.37$0.38$0.69$0.70$0.93$1.43$2.10$2.75$2.99$3.16$3.34$2.79$2.05$1.74$1.42$0.76$0.58$0.35
Jul$0.38$0.35$0.30$0.26$0.25$0.25$0.30$0.26$0.26$0.39$0.46$0.60$1.08$1.29$1.38$1.59$1.91$1.76$2.37$2.44$1.73$0.83$0.49$0.33
Aug$0.64$0.50$0.44$0.45$0.43$0.57$0.77$0.68$0.74$1.03$1.21$1.51$1.60$1.91$1.91$2.13$2.41$2.50$3.17$2.70$1.69$1.13$0.74$0.58
Sep$2.08$1.82$1.83$1.79$1.83$1.87$1.77$1.23$0.80$0.88$1.09$1.15$1.52$1.95$2.22$2.49$2.09$2.87$3.36$2.58$2.45$2.13$1.97$1.68
Oct$1.26$1.38$1.46$1.49$1.46$1.57$1.62$1.19$0.90$1.05$1.49$1.92$1.97$1.87$2.13$2.34$2.47$3.45$2.59$1.82$1.39$1.17$1.09$1.01
Nov$1.79$1.73$1.64$1.61$1.80$2.32$3.26$3.44$1.69$1.51$1.54$1.51$1.54$1.57$1.62$1.51$1.76$2.46$2.54$2.23$2.16$2.12$2.15$2.09
Dec$1.95$1.62$1.47$1.56$1.54$1.82$2.53$2.21$2.05$1.78$1.50$1.46$1.65$1.56$1.55$2.27$3.76$4.98$4.62$4.19$3.67$2.74$2.46$2.44
AMMOunconstrained0.25460.4194$3.06$106.6541.1%3,598
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($13.13/MWh).

AMMO (peak: $13.13/MWh)
01234567891011121314151617181920212223
Jan$6.48$6.98$7.08$6.64$6.82$7.04$8.02$10.69$8.50$6.10$4.91$4.87$5.00$5.07$4.86$5.12$5.45$7.24$8.16$9.27$8.88$7.54$6.92$5.98
Feb$3.21$3.31$3.46$3.66$3.93$3.78$3.68$5.01$3.60$2.83$2.61$2.40$2.25$2.08$1.90$1.96$1.72$2.22$2.63$2.76$2.81$2.79$3.12$2.27
Mar$2.54$2.46$2.41$2.69$3.11$4.50$5.35$4.09$2.63$2.33$1.98$1.96$1.86$1.81$1.79$2.19$2.97$4.29$4.81$4.20$3.06$2.80$2.99$2.70
Apr$2.40$2.59$2.54$2.58$2.81$3.34$4.20$2.66$1.89$1.75$1.64$1.74$2.06$2.15$2.66$3.21$3.40$3.12$2.94$3.55$2.57$1.83$2.23$1.96
May$1.87$1.95$1.81$1.63$1.58$1.73$1.97$1.71$1.41$1.57$2.17$3.68$5.35$8.69$11.94$13.13$12.64$10.23$6.89$7.16$4.98$2.80$2.14$1.88
Jun$0.89$0.95$1.02$0.89$0.86$0.89$0.54$0.60$0.72$0.91$1.08$1.35$2.37$3.13$3.99$4.04$4.46$4.31$3.39$2.53$2.10$1.21$0.93$0.77
Jul$0.37$0.38$0.37$0.35$0.30$0.29$0.35$0.35$0.37$0.52$0.63$0.95$1.77$2.36$2.99$3.69$3.73$4.09$5.16$4.10$2.92$1.45$0.83$0.52
Aug$0.50$0.37$0.32$0.30$0.27$0.44$0.84$0.96$1.23$1.73$1.80$2.07$2.00$2.29$2.32$2.46$3.25$3.78$5.37$4.56$2.91$1.75$1.09$0.73
Sep$3.11$2.83$2.90$2.78$2.63$2.53$2.60$1.85$1.28$1.26$1.51$1.80$2.30$2.87$4.32$5.20$5.33$5.91$6.18$4.47$3.87$3.28$3.00$2.56
Oct$2.44$2.39$2.52$2.34$1.94$1.99$2.39$1.74$1.54$1.67$2.11$2.23$2.13$2.30$2.28$2.21$3.43$5.63$4.74$2.55$2.15$2.10$1.59$1.67
Nov$3.91$4.06$4.64$4.65$4.46$4.57$5.40$6.85$3.28$1.89$1.75$1.76$2.06$1.82$1.89$1.87$3.17$4.28$4.74$4.57$4.51$4.62$4.65$3.96
Dec$2.29$1.94$2.13$2.01$2.03$2.41$2.66$3.30$2.56$2.09$1.56$1.33$1.30$1.41$1.34$1.76$2.29$2.87$2.46$2.73$2.41$2.31$2.47$2.15
BRECunconstrained0.20640.4161$3.38$105.8043.7%3,825
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($12.34/MWh).

BREC (peak: $12.34/MWh)
01234567891011121314151617181920212223
Jan$3.36$3.60$3.78$3.73$3.87$4.15$5.25$7.47$5.45$3.36$2.68$2.55$2.35$2.37$2.49$2.63$2.84$3.72$4.86$5.02$4.91$4.28$3.56$3.22
Feb$4.01$3.83$3.84$3.67$4.06$3.80$5.81$6.49$5.46$4.46$3.19$2.50$2.49$2.41$2.60$2.60$2.60$3.49$4.74$5.30$5.32$4.73$4.30$4.11
Mar$4.82$4.56$4.76$5.22$5.96$7.78$9.35$6.29$4.32$3.62$3.09$3.26$3.31$3.58$3.56$4.00$4.43$5.32$6.13$6.10$5.56$5.48$5.66$5.62
Apr$5.53$5.62$5.67$6.24$7.07$8.58$8.05$5.50$4.82$4.90$5.31$5.64$5.94$6.13$6.36$6.38$7.07$7.99$8.54$9.59$7.70$6.76$6.50$5.91
May$1.69$1.79$1.64$1.62$1.91$1.98$1.78$1.49$1.54$1.70$2.51$3.83$5.53$8.70$11.75$12.34$12.08$9.41$6.97$7.58$5.28$2.71$1.96$1.87
Jun$0.55$0.56$0.57$0.54$0.61$0.63$0.55$0.48$0.78$0.77$1.14$1.63$2.71$3.56$4.15$4.74$5.05$3.94$2.91$2.60$2.23$0.70$0.57$0.41
Jul$0.62$0.55$0.46$0.46$0.57$0.62$0.93$0.68$0.88$1.24$1.34$1.60$2.66$3.06$3.07$3.21$3.60$3.18$4.07$4.18$2.47$1.13$0.74$0.46
Aug$0.50$0.38$0.31$0.33$0.36$0.52$0.84$0.85$0.95$1.28$1.42$1.65$1.84$2.17$2.35$2.62$2.84$3.05$3.97$3.35$1.77$1.32$0.73$0.52
Sep$1.72$1.60$1.61$1.61$1.58$1.58$1.58$1.21$1.00$1.31$1.53$1.68$1.94$2.26$2.76$2.72$3.02$3.15$3.49$2.49$2.06$1.68$1.49$1.28
Oct$2.54$2.57$2.59$2.82$3.01$3.64$4.20$2.65$1.47$1.37$1.80$2.25$2.39$2.54$2.97$2.78$3.26$5.43$5.81$3.12$2.46$2.25$2.48$2.61
Nov$3.28$3.06$3.17$3.34$3.36$3.55$6.73$5.85$2.75$2.58$2.38$2.37$2.46$2.42$2.72$3.06$4.22$6.52$4.99$3.82$3.43$3.60$3.06$3.06
Dec$3.09$2.98$3.28$3.58$4.22$4.85$5.95$6.69$4.32$3.35$2.08$1.63$1.33$1.41$1.39$1.78$2.56$4.25$4.08$3.72$3.18$2.72$3.21$2.60
CINunconstrained0.19440.4306$2.97$100.3340.3%3,527
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($11.50/MWh).

CIN (peak: $11.50/MWh)
01234567891011121314151617181920212223
Jan$2.84$3.06$3.22$3.15$3.24$3.29$4.01$5.45$3.56$2.44$1.99$1.83$1.78$1.82$1.90$1.97$2.16$2.76$3.45$3.58$3.51$3.13$2.56$2.55
Feb$2.56$2.39$2.45$2.41$2.56$2.49$3.28$3.64$3.11$1.99$1.43$1.35$1.33$1.38$1.47$1.51$1.56$1.57$2.09$2.04$1.87$1.89$1.96$2.00
Mar$3.84$3.68$3.84$4.15$4.91$6.57$7.61$5.20$3.87$3.59$3.10$3.36$3.35$3.65$3.41$3.60$3.69$4.21$4.44$4.27$3.87$3.55$3.90$3.98
Apr$5.27$5.43$5.52$6.25$7.27$9.22$8.10$5.05$4.34$4.21$4.36$4.56$4.29$4.22$4.64$5.09$5.24$5.15$5.35$5.39$4.22$4.12$4.44$4.82
May$1.62$1.69$1.55$1.65$1.96$2.03$1.70$1.43$1.56$1.71$2.35$3.54$4.72$7.52$10.18$11.50$11.47$9.03$6.38$7.10$4.99$2.75$1.88$1.90
Jun$0.61$0.59$0.60$0.53$0.61$0.70$0.61$0.48$0.80$0.84$1.30$2.01$3.37$4.89$6.00$7.34$8.82$7.04$5.18$4.44$3.66$0.91$0.61$0.44
Jul$0.46$0.53$0.54$0.55$0.65$0.65$0.81$0.51$0.59$0.68$0.80$0.91$1.77$1.95$2.07$2.59$2.70$2.27$2.55$2.45$1.71$0.78$0.45$0.37
Aug$0.49$0.39$0.33$0.36$0.40$0.53$0.73$0.67$0.71$0.88$1.05$1.36$1.59$1.83$2.49$2.91$2.92$2.59$2.69$2.54$1.81$1.18$0.56$0.40
Sep$1.56$1.47$1.48$1.59$1.79$1.98$1.59$1.08$0.79$1.13$1.38$1.52$1.63$1.77$2.02$2.02$2.34$4.01$4.29$2.96$2.09$1.50$1.38$1.16
Oct$3.28$3.10$3.23$3.63$4.42$5.32$5.70$3.23$1.58$1.49$1.94$2.64$3.01$3.40$4.36$5.01$7.12$10.27$9.22$5.52$3.44$2.47$2.43$2.79
Nov$3.13$2.84$2.89$3.06$3.19$3.71$6.54$6.36$2.80$2.34$2.07$2.00$1.97$1.89$2.10$2.49$3.50$5.35$3.89$3.25$2.93$3.29$3.04$3.07
Dec$2.69$2.68$2.69$2.84$2.92$3.27$4.20$3.91$2.81$2.09$1.49$1.15$1.01$1.05$1.18$1.61$2.70$3.87$3.53$3.24$3.09$2.76$2.99$2.69
CLECtransmission0.70310.4133$8.91$346.3569.3%6,071
Transmission-constrained zones have flow limits on power lines. Dispatchable resources reduce peak flows by providing local supply or reducing demand during congestion events. Consistent resources lower baseline load, reducing the magnitude of peak flows.
PrimarydispatchableBattery Storage, Demand Response
Dispatches during congestion events to reduce line loading
SecondaryconsistentEnergy Efficiency (Metered), Weatherization
Reduces baseline load, lowering chronic transmission stress
TertiaryvariableSolar PV
Adds local generation (value depends on coincidence with peak congestion)

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($45.78/MWh).

CLEC (peak: $45.78/MWh)
01234567891011121314151617181920212223
Jan$5.79$5.18$4.80$4.35$4.37$5.44$8.06$12.36$10.40$6.40$4.80$4.70$4.53$3.85$3.74$4.06$6.91$14.64$12.88$7.83$6.47$5.93$5.05$5.14
Feb$4.85$4.40$3.92$4.43$4.90$6.40$10.66$15.88$13.52$9.51$8.50$8.20$7.28$6.11$4.52$4.12$5.23$11.38$9.71$6.48$5.36$5.30$4.68$5.34
Mar$4.97$4.46$4.01$3.69$3.48$4.01$6.63$6.26$4.18$4.17$4.69$5.57$6.83$7.83$9.18$10.02$10.43$9.50$8.89$8.93$7.28$5.95$5.64$5.15
Apr$3.25$3.10$2.80$2.99$3.22$5.21$4.69$3.54$2.99$3.19$2.96$3.90$5.69$7.21$8.83$11.09$11.32$11.04$10.55$8.84$6.05$4.15$3.31$2.97
May$2.66$2.46$2.34$2.02$2.51$4.46$5.17$4.58$4.41$4.53$5.51$9.36$13.31$23.65$32.87$37.33$37.70$29.43$22.26$22.72$14.15$7.04$3.94$3.02
Jun$3.87$2.59$1.85$1.91$2.45$4.32$6.04$6.98$7.91$7.88$9.14$11.37$13.21$14.79$16.68$19.08$20.40$21.44$21.35$20.64$17.25$10.69$7.98$5.61
Jul$7.06$3.46$2.28$2.08$3.54$7.40$8.86$10.98$14.23$15.78$16.66$20.62$23.22$25.91$25.97$28.94$36.93$40.56$45.78$37.58$25.88$20.88$13.75$9.58
Aug$3.03$1.61$1.41$1.83$2.93$6.40$7.12$6.86$8.05$9.11$9.69$12.91$13.53$15.07$16.88$17.29$19.62$22.40$28.63$21.11$17.33$11.22$7.57$5.15
Sep$2.09$1.83$1.83$2.10$3.57$8.88$13.61$9.55$6.91$7.68$6.92$7.34$6.04$6.59$7.28$7.81$9.30$12.59$15.25$10.34$8.38$5.63$3.91$2.50
Oct$3.71$3.45$3.21$3.38$4.31$9.38$15.26$15.52$7.48$6.23$5.65$5.63$6.30$7.91$9.46$10.27$10.85$15.02$11.28$5.99$5.37$4.88$3.91$3.30
Nov$3.66$3.25$3.22$3.46$3.74$4.83$9.11$12.37$8.29$6.26$5.66$5.24$4.62$4.98$4.78$5.04$5.79$9.86$9.25$6.08$5.10$4.51$4.05$3.99
Dec$6.22$5.86$5.63$5.62$5.81$6.76$8.58$12.11$11.50$8.94$6.86$6.28$6.07$5.52$5.41$6.00$12.25$19.42$12.69$9.28$7.77$7.53$6.38$6.03
CONSunconstrained0.19880.4693$2.95$107.1140.7%3,568
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($12.22/MWh).

CONS (peak: $12.22/MWh)
01234567891011121314151617181920212223
Jan$3.87$4.14$4.21$4.18$4.42$4.48$4.93$6.83$5.47$3.68$2.73$2.24$2.04$2.08$2.08$2.35$2.66$3.44$4.45$4.60$4.46$4.38$3.03$3.19
Feb$3.00$2.99$2.99$2.79$3.18$2.55$2.64$2.68$2.25$1.39$1.17$1.14$1.24$1.35$1.57$1.57$1.63$1.66$1.64$1.55$1.61$1.77$1.90$2.03
Mar$3.81$3.62$3.76$4.12$4.68$5.53$6.09$4.06$2.52$2.32$2.07$2.20$2.39$2.62$2.76$2.99$2.97$3.31$3.29$3.32$3.11$2.82$3.25$3.80
Apr$4.43$4.60$4.68$5.29$5.70$6.46$5.53$3.61$3.01$2.70$2.89$2.78$2.63$2.47$2.44$3.01$3.31$3.12$2.49$3.10$2.61$2.90$3.12$3.59
May$1.51$1.58$1.46$1.58$1.82$1.75$1.49$1.21$1.23$1.28$1.90$3.15$4.41$7.53$10.88$12.22$11.90$9.26$6.46$6.52$4.20$2.16$1.37$1.30
Jun$0.52$0.48$0.40$0.46$0.56$0.82$0.83$0.91$1.47$1.51$2.03$3.02$4.27$4.97$5.23$5.55$5.49$4.30$3.11$2.30$1.43$0.65$0.56$0.47
Jul$0.67$0.70$0.67$0.69$0.91$0.97$1.09$0.67$0.82$0.86$1.03$1.34$1.92$2.21$2.04$2.63$2.96$2.37$3.00$2.89$2.04$1.12$0.70$0.46
Aug$0.54$0.43$0.39$0.36$0.46$0.56$0.88$0.77$0.82$0.96$1.48$2.14$2.97$4.77$5.63$6.10$7.07$5.38$7.94$6.62$3.69$1.94$0.88$0.47
Sep$1.34$1.31$1.31$1.62$2.31$2.94$1.93$1.10$0.83$0.86$0.99$1.19$1.20$1.71$2.46$2.87$3.85$6.69$7.10$4.29$2.23$1.14$0.95$0.88
Oct$4.29$4.44$4.59$5.59$7.12$7.90$7.35$5.15$2.69$2.26$2.12$2.34$1.98$2.11$2.40$2.54$3.91$6.09$5.59$3.41$2.50$2.50$2.77$3.32
Nov$2.00$1.75$1.72$1.90$2.24$2.77$5.90$6.25$2.46$2.07$1.82$1.57$1.47$1.49$1.63$2.21$3.41$4.93$3.42$2.77$2.30$2.37$2.21$2.47
Dec$3.23$3.45$3.46$3.86$3.91$4.02$4.82$4.79$3.18$2.26$1.57$1.17$1.32$1.31$1.60$2.47$4.39$6.48$4.81$4.34$4.09$3.55$3.70$3.32
CWLPunconstrained0.23370.4427$3.23$106.4635.9%3,143
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($15.74/MWh).

CWLP (peak: $15.74/MWh)
01234567891011121314151617181920212223
Jan$1.48$1.46$1.51$1.71$1.74$2.03$2.98$4.40$3.42$2.26$1.90$1.80$1.58$1.50$1.43$1.23$1.58$1.89$2.37$2.45$2.47$1.94$1.57$1.64
Feb$2.16$2.30$2.29$2.03$2.07$2.07$2.28$2.53$1.65$1.14$1.17$1.42$1.39$1.34$1.24$1.36$1.28$1.27$1.68$1.92$1.51$1.45$1.28$1.58
Mar$4.04$3.54$3.64$3.53$3.58$4.55$6.09$4.91$3.54$3.13$2.95$3.01$3.21$3.42$3.70$3.80$3.54$4.08$5.04$5.31$4.45$3.91$3.72$3.60
Apr$4.87$4.76$4.90$5.14$6.29$8.23$8.72$5.99$4.84$4.58$4.57$5.05$5.44$5.43$6.11$6.90$6.61$5.97$5.08$5.42$4.71$4.47$4.74$4.88
May$1.45$1.47$1.40$1.50$1.53$1.70$1.56$1.38$1.46$1.88$2.58$5.62$7.67$11.31$14.06$15.74$14.42$10.97$7.16$6.84$4.52$2.74$1.90$1.99
Jun$0.47$0.45$0.41$0.39$0.36$0.50$0.39$0.39$0.90$0.86$1.23$1.99$2.85$3.81$4.24$4.55$4.54$4.00$2.66$2.02$1.60$0.76$0.54$0.34
Jul$0.45$0.42$0.33$0.33$0.31$0.31$0.39$0.30$0.30$0.58$0.59$0.83$1.44$1.75$1.97$2.43$2.44$2.52$2.72$1.73$1.13$0.55$0.42$0.32
Aug$0.73$0.60$0.53$0.55$0.55$0.68$0.89$0.59$0.58$0.71$0.99$1.54$1.73$1.97$1.92$2.28$2.24$1.91$2.56$1.97$1.44$0.99$0.73$0.61
Sep$0.80$0.67$0.70$0.89$1.24$1.60$1.24$0.79$0.56$0.60$0.88$1.08$1.34$1.55$1.90$1.81$1.87$1.86$1.79$1.13$1.23$1.05$0.97$0.85
Oct$1.87$2.13$2.30$2.49$2.69$3.00$2.45$1.55$0.97$2.10$3.28$4.94$5.45$4.68$5.01$5.91$4.24$4.03$3.61$2.21$1.95$1.83$1.71$1.62
Nov$10.35$10.89$11.61$11.59$11.33$11.60$10.94$10.93$6.69$6.23$5.64$6.01$6.10$6.48$6.32$6.48$5.48$5.66$6.08$7.71$8.01$9.37$9.62$9.56
Dec$4.13$3.69$4.09$4.19$3.98$4.54$4.56$4.18$3.81$2.81$2.41$2.30$2.64$2.60$2.53$3.23$5.37$6.32$5.76$4.97$5.05$3.96$4.37$3.92
DECOunconstrained0.22980.4662$3.07$106.7340.3%3,534
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($12.66/MWh).

DECO (peak: $12.66/MWh)
01234567891011121314151617181920212223
Jan$3.85$4.05$4.02$3.96$4.16$4.18$5.87$12.66$9.96$4.10$2.45$2.21$1.93$2.08$2.22$2.31$2.66$4.35$6.24$7.37$7.20$7.31$3.50$3.50
Feb$2.83$2.83$2.89$2.60$3.06$2.44$2.91$3.48$2.76$1.75$1.86$1.98$2.21$2.18$2.32$2.03$2.23$2.32$3.11$2.46$1.92$1.85$1.86$1.99
Mar$3.61$3.44$3.60$3.92$4.57$5.45$7.61$5.63$3.02$3.41$3.14$2.95$2.78$3.02$3.01$3.20$3.50$3.56$4.03$4.00$3.30$2.91$3.23$3.62
Apr$4.03$4.45$4.58$5.08$5.35$6.11$5.65$3.83$2.98$2.66$2.63$2.72$2.73$2.62$2.61$3.23$3.61$3.48$4.09$5.54$4.36$3.18$3.12$3.39
May$1.41$1.43$1.30$1.36$1.59$1.48$1.22$0.89$0.97$1.06$1.65$2.95$4.28$7.44$10.72$12.03$11.64$9.04$6.41$6.55$4.24$2.18$1.44$1.36
Jun$0.48$0.45$0.40$0.44$0.49$0.68$0.51$0.49$0.87$0.93$1.51$2.47$3.62$4.17$4.23$4.40$4.13$3.28$2.34$1.66$1.29$0.57$0.51$0.44
Jul$0.67$0.70$0.67$0.69$0.89$0.93$1.06$0.68$0.79$0.85$1.04$1.41$2.28$2.55$2.49$3.14$3.05$2.53$3.14$3.86$2.73$1.61$0.74$0.57
Aug$0.58$0.46$0.42$0.35$0.44$0.53$0.82$0.74$0.79$1.08$1.91$2.85$3.93$5.16$5.53$5.40$5.72$4.27$5.45$5.09$3.28$1.71$0.87$0.42
Sep$1.24$1.21$1.21$1.48$2.01$2.52$1.50$0.89$0.75$0.77$0.90$0.96$0.98$1.39$1.99$2.10$2.76$4.35$4.92$3.04$1.81$1.03$0.94$0.84
Oct$3.74$3.89$4.09$4.96$6.25$7.03$6.70$4.69$2.49$1.98$1.90$2.02$1.68$1.84$2.12$2.15$3.11$4.82$4.60$2.91$2.45$2.23$2.62$3.00
Nov$2.57$2.21$2.19$2.38$2.69$3.16$6.23$7.24$3.05$2.43$2.13$1.92$1.88$1.97$2.07$2.64$4.27$6.11$4.06$2.77$2.34$2.67$2.41$3.07
Dec$3.20$3.49$3.46$4.00$4.14$4.58$6.83$6.83$4.46$3.07$2.41$1.70$1.65$1.72$2.14$3.34$5.97$9.42$5.90$4.88$4.34$3.74$3.75$3.40
DPCunconstrained0.36040.4649$5.01$126.1460.8%5,326
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($18.38/MWh).

DPC (peak: $18.38/MWh)
01234567891011121314151617181920212223
Jan$4.81$5.45$5.75$5.82$6.47$6.88$8.35$11.79$7.44$5.81$4.34$3.88$3.70$3.34$2.89$2.81$2.89$3.90$3.68$4.10$4.63$4.76$4.87$3.78
Feb$2.62$2.80$3.02$3.14$3.47$3.37$3.73$4.11$3.98$3.84$3.22$2.30$2.35$2.23$2.14$2.07$1.48$1.88$2.17$2.35$2.22$2.33$2.44$2.60
Mar$3.90$3.88$3.97$4.37$4.83$5.75$7.78$6.31$4.07$3.84$3.61$3.86$4.10$4.28$5.03$5.74$5.70$5.98$6.39$6.06$5.20$4.49$4.26$4.20
Apr$4.35$4.61$4.70$4.87$4.84$5.11$4.42$3.24$2.90$2.67$2.78$3.29$3.47$4.12$5.44$6.67$7.19$7.03$6.80$7.11$5.06$4.06$3.43$3.95
May$2.45$2.70$2.72$2.68$2.79$2.52$2.80$2.99$3.22$2.89$2.94$4.18$5.70$9.05$12.02$13.94$14.06$11.71$9.64$10.83$7.64$5.03$4.24$2.80
Jun$2.68$2.24$1.78$1.33$1.40$2.27$2.04$2.30$3.08$3.45$3.58$5.01$7.08$8.20$9.08$9.97$9.85$8.79$7.37$7.28$6.53$4.84$5.10$3.80
Jul$2.34$1.57$1.22$1.10$1.26$1.38$1.79$1.75$2.31$2.57$3.59$4.66$5.44$6.43$6.50$8.09$8.93$10.04$12.59$13.64$10.41$7.29$5.52$3.85
Aug$2.70$1.93$1.58$1.43$1.24$1.65$2.55$3.27$4.07$5.04$5.45$5.94$6.51$7.54$8.33$9.11$8.96$12.01$18.38$16.20$10.90$8.45$5.89$3.66
Sep$2.39$2.11$1.97$2.01$2.49$2.59$3.05$3.79$4.46$5.67$6.35$6.65$6.22$6.30$6.94$6.94$7.80$8.82$16.39$10.78$7.61$4.98$3.82$2.33
Oct$4.88$5.33$5.63$6.21$6.42$5.78$4.84$4.94$4.23$3.93$4.31$3.56$3.53$3.85$4.25$4.99$5.78$9.73$11.22$6.50$5.29$4.29$4.31$3.93
Nov$4.63$4.65$5.01$5.33$5.35$5.32$6.96$7.01$3.04$3.02$3.01$2.96$2.99$3.16$3.45$3.73$4.84$6.49$6.23$5.49$5.09$5.32$4.55$5.02
Dec$5.01$5.14$5.64$5.99$5.69$5.94$7.53$7.74$5.44$3.30$2.09$1.83$1.83$2.45$2.58$2.96$3.51$4.81$4.75$4.82$4.81$4.50$4.84$5.18
EAItransmission0.57410.4438$7.92$168.0466.0%5,784
Transmission-constrained zones have flow limits on power lines. Dispatchable resources reduce peak flows by providing local supply or reducing demand during congestion events. Consistent resources lower baseline load, reducing the magnitude of peak flows.
PrimarydispatchableBattery Storage, Demand Response
Dispatches during congestion events to reduce line loading
SecondaryconsistentEnergy Efficiency (Metered), Weatherization
Reduces baseline load, lowering chronic transmission stress
TertiaryvariableSolar PV
Adds local generation (value depends on coincidence with peak congestion)

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($42.83/MWh).

EAI (peak: $42.83/MWh)
01234567891011121314151617181920212223
Jan$6.02$5.38$5.14$5.18$5.25$6.24$7.63$11.77$9.70$6.34$5.06$4.21$4.18$3.74$3.54$3.89$6.49$14.08$11.13$5.96$6.33$5.89$4.89$5.13
Feb$5.82$5.45$5.75$6.10$5.81$7.05$10.32$13.77$8.93$6.95$6.17$5.87$5.33$4.46$3.11$2.26$3.41$9.73$8.62$4.87$4.75$4.95$4.45$5.52
Mar$3.20$3.01$2.93$3.01$2.94$3.42$6.74$5.41$2.81$2.96$3.14$3.16$2.94$3.32$3.40$3.52$3.68$4.36$4.62$3.73$4.42$4.07$3.36$3.27
Apr$2.70$2.73$2.58$2.50$2.87$4.89$4.15$3.56$2.99$3.51$2.94$2.81$2.78$2.79$2.96$3.36$3.42$3.74$4.73$5.29$4.25$3.09$2.83$2.64
May$2.04$1.93$2.14$1.89$2.44$4.66$5.45$4.58$4.63$4.72$4.11$4.55$5.39$8.09$10.26$11.31$11.25$10.62$9.10$10.12$6.59$4.13$3.30$2.68
Jun$3.55$2.33$1.59$1.74$2.24$4.14$6.08$7.02$7.94$8.11$8.91$10.77$12.37$13.94$14.97$17.36$18.35$19.71$20.30$19.92$16.68$10.37$7.36$5.25
Jul$6.82$3.16$2.01$1.85$3.36$7.21$8.63$10.99$14.67$17.20$18.37$22.73$25.32$27.58$27.52$30.24$36.23$38.77$42.83$30.50$21.90$19.39$13.62$9.70
Aug$2.81$1.44$1.26$1.60$2.56$5.98$6.35$6.34$7.93$9.79$10.30$13.73$14.52$16.14$17.96$18.72$20.74$23.40$28.89$20.00$16.31$10.65$7.26$4.89
Sep$2.23$1.97$1.98$2.28$3.70$9.02$13.70$9.57$7.50$9.06$8.43$9.34$8.31$8.98$8.39$8.80$10.13$12.84$15.19$10.61$8.94$6.10$4.26$2.71
Oct$3.26$3.11$2.92$3.31$4.29$8.83$13.91$14.64$7.12$6.41$6.19$6.54$6.26$5.09$5.23$5.12$7.24$13.31$12.22$6.93$5.68$5.18$4.66$2.95
Nov$3.85$3.82$3.80$4.03$4.25$5.53$9.62$13.00$8.50$5.86$5.51$4.96$4.29$3.63$3.81$3.88$6.18$9.69$8.03$5.59$5.10$4.82$4.57$4.15
Dec$7.18$6.56$6.86$6.60$6.58$7.59$11.69$15.26$13.11$12.01$9.38$8.63$7.94$7.40$7.41$8.07$14.86$22.11$15.02$10.89$9.36$7.66$7.38$6.55
EEStransmission0.62640.4104$8.45$173.9167.8%5,941
Transmission-constrained zones have flow limits on power lines. Dispatchable resources reduce peak flows by providing local supply or reducing demand during congestion events. Consistent resources lower baseline load, reducing the magnitude of peak flows.
PrimarydispatchableBattery Storage, Demand Response
Dispatches during congestion events to reduce line loading
SecondaryconsistentEnergy Efficiency (Metered), Weatherization
Reduces baseline load, lowering chronic transmission stress
TertiaryvariableSolar PV
Adds local generation (value depends on coincidence with peak congestion)

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($45.72/MWh).

EES (peak: $45.72/MWh)
01234567891011121314151617181920212223
Jan$5.48$5.07$4.78$4.32$4.26$5.31$8.04$13.07$10.18$6.51$4.79$4.42$4.34$3.72$3.65$4.06$6.89$14.70$12.87$7.83$6.45$6.02$5.27$5.18
Feb$4.86$4.28$3.87$4.36$4.75$6.31$10.47$15.55$13.09$9.00$8.02$7.85$6.98$5.86$4.26$3.82$4.77$10.78$9.43$6.05$4.86$4.79$4.10$5.09
Mar$4.90$4.42$3.99$3.71$3.59$4.19$6.87$6.40$4.11$4.12$4.40$4.86$5.65$6.63$8.10$9.09$9.36$9.05$8.93$8.95$6.98$5.62$5.28$4.87
Apr$3.20$3.11$2.77$2.97$3.31$5.37$4.94$3.62$2.88$2.96$2.95$3.96$5.44$7.30$9.55$11.99$12.35$11.41$11.21$8.44$5.93$4.13$3.50$2.94
May$2.47$2.27$2.25$1.98$2.45$4.41$5.07$4.48$4.28$4.09$4.41$6.35$8.92$14.14$19.45$22.41$22.68$18.22$15.04$13.69$9.12$5.17$3.28$2.55
Jun$3.84$2.57$1.81$1.89$2.44$4.32$6.06$6.96$7.89$7.85$9.04$11.25$12.87$14.27$15.73$18.19$19.64$20.92$21.19$20.54$17.22$10.66$7.97$5.55
Jul$7.09$3.46$2.28$2.09$3.56$7.44$8.86$11.00$14.26$15.95$16.89$20.96$23.57$26.29$25.84$28.71$36.37$40.21$45.72$37.46$25.87$20.90$13.79$9.61
Aug$3.03$1.60$1.41$1.83$2.93$6.40$7.12$6.87$8.07$9.18$9.56$12.72$13.28$14.80$16.47$17.24$19.47$22.04$28.79$21.23$17.43$11.28$7.59$5.17
Sep$2.05$1.81$1.80$2.08$3.61$8.95$13.68$9.52$6.89$7.67$6.77$7.17$5.80$6.26$7.11$7.78$9.12$11.49$14.49$10.25$8.45$5.66$3.89$2.43
Oct$3.42$3.24$3.01$3.26$4.24$9.35$15.30$15.50$7.41$6.12$5.35$5.20$5.67$6.50$7.67$8.28$9.41$13.89$10.39$5.61$4.73$4.41$3.53$3.04
Nov$3.74$3.31$3.16$3.44$3.75$4.88$9.03$12.34$8.10$5.94$5.35$4.89$4.28$4.48$4.45$4.58$5.51$9.26$8.76$5.64$4.68$4.24$4.00$3.88
Dec$6.38$5.96$5.90$5.54$5.76$6.83$9.18$12.54$11.56$9.45$7.41$6.79$6.55$5.81$5.59$6.40$12.77$19.99$12.92$9.13$7.93$7.32$6.45$6.20
EMBAtransmission0.59090.4155$8.03$169.0265.5%5,741
Transmission-constrained zones have flow limits on power lines. Dispatchable resources reduce peak flows by providing local supply or reducing demand during congestion events. Consistent resources lower baseline load, reducing the magnitude of peak flows.
PrimarydispatchableBattery Storage, Demand Response
Dispatches during congestion events to reduce line loading
SecondaryconsistentEnergy Efficiency (Metered), Weatherization
Reduces baseline load, lowering chronic transmission stress
TertiaryvariableSolar PV
Adds local generation (value depends on coincidence with peak congestion)

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($43.67/MWh).

EMBA (peak: $43.67/MWh)
01234567891011121314151617181920212223
Jan$5.68$5.19$5.05$4.68$4.72$5.66$7.97$11.23$11.19$6.32$4.90$4.31$4.21$3.76$3.53$3.96$6.62$14.44$11.95$6.88$5.79$5.16$4.76$4.68
Feb$4.89$4.49$4.14$4.65$5.15$7.32$11.48$16.50$13.03$8.34$6.88$6.55$5.66$4.62$3.08$2.64$3.84$10.20$9.58$5.78$4.99$5.00$4.28$5.33
Mar$3.58$3.46$3.27$3.22$3.25$3.90$6.64$5.43$3.24$3.04$3.10$3.07$2.91$3.03$3.43$3.71$4.18$5.23$5.99$5.27$4.59$4.37$4.40$4.14
Apr$2.85$2.79$2.71$2.71$2.95$5.14$5.43$3.53$2.83$2.81$2.41$2.14$2.05$1.99$2.96$3.65$3.82$4.17$5.03$5.87$4.33$3.13$2.92$2.61
May$2.06$1.92$2.00$1.81$2.41$4.41$5.27$4.40$4.30$4.59$4.43$5.89$7.53$11.83$15.94$17.63$17.26$13.97$10.16$11.39$7.66$4.43$3.23$2.37
Jun$3.32$2.22$1.42$1.56$2.10$4.02$5.87$6.84$7.80$7.89$8.73$10.64$12.30$14.24$15.27$17.26$18.91$19.95$20.29$20.01$16.78$10.54$7.81$5.22
Jul$6.42$3.08$2.10$1.99$3.38$6.94$8.69$11.02$14.63$16.79$17.46$21.70$24.32$26.22$26.83$28.54$34.76$38.68$43.67$33.39$22.93$19.53$13.13$9.56
Aug$3.15$1.68$1.55$1.97$3.16$6.64$7.61$7.29$8.66$10.18$10.49$13.81$14.31$15.74$17.36$18.17$20.94$23.10$28.88$20.55$16.95$11.14$7.57$5.31
Sep$2.06$1.78$1.79$2.11$3.58$8.89$13.88$10.05$7.67$8.94$8.03$8.85$8.15$9.42$9.18$9.60$11.26$14.94$16.16$10.70$9.36$6.07$3.91$2.34
Oct$3.25$3.11$3.05$3.57$5.06$10.15$16.61$17.44$9.88$8.61$7.39$7.16$6.43$5.04$5.52$5.70$7.72$14.00$10.80$5.63$4.01$3.62$3.35$3.08
Nov$3.48$3.28$3.26$3.56$3.78$4.98$9.42$12.43$8.49$6.06$5.45$4.80$3.87$3.26$3.14$3.49$6.08$10.11$8.09$5.30$4.38$4.01$3.99$3.64
Dec$6.71$6.19$6.27$5.73$5.77$6.84$9.58$13.32$10.87$10.37$8.23$7.66$7.26$6.59$6.51$7.26$13.48$20.69$13.55$9.72$8.07$6.21$6.59$5.99
GREunconstrained0.44600.4692$8.72$138.7871.3%6,248
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($27.53/MWh).

GRE (peak: $27.53/MWh)
01234567891011121314151617181920212223
Jan$8.66$9.09$9.29$9.42$10.21$10.81$13.40$19.44$13.30$10.22$8.11$7.77$6.96$6.08$5.20$5.06$5.70$7.52$7.61$9.38$9.35$8.43$8.83$7.62
Feb$5.09$5.73$5.91$6.52$7.25$7.26$8.15$11.02$7.74$5.28$4.98$3.94$3.73$3.62$3.74$3.47$3.70$3.89$4.34$5.34$4.68$4.85$4.92$4.33
Mar$5.00$5.04$4.96$5.37$5.85$7.09$10.04$8.16$5.40$4.84$4.27$4.52$4.73$5.03$5.74$6.63$7.15$7.83$9.11$8.45$7.07$6.16$5.54$5.18
Apr$4.91$5.15$5.31$5.60$5.57$6.65$6.63$4.67$3.64$3.47$3.33$3.63$3.92$4.76$6.06$7.39$7.99$7.84$8.52$8.91$6.20$4.92$4.37$4.81
May$4.18$4.54$4.65$4.52$4.53$4.38$4.74$4.39$4.16$3.88$4.36$5.47$6.74$10.28$12.92$14.80$14.98$13.44$10.92$12.18$8.61$5.70$4.78$4.19
Jun$3.54$2.98$2.27$1.95$1.81$2.57$2.13$2.72$4.03$4.19$4.21$5.44$7.12$8.30$9.60$10.44$10.48$9.82$9.44$8.86$7.42$5.60$6.10$4.23
Jul$3.11$1.97$1.62$1.42$1.56$1.72$2.36$2.43$2.95$3.25$3.90$4.63$5.23$6.01$5.86$7.24$8.38$9.01$10.35$11.14$8.37$6.27$6.30$4.73
Aug$3.60$2.42$1.97$1.79$1.76$2.24$3.17$4.10$4.90$6.66$6.66$6.92$7.44$8.79$9.11$10.09$10.19$12.77$17.59$14.64$10.28$9.23$8.15$5.45
Sep$3.46$2.73$2.44$2.20$2.44$3.53$4.36$6.20$7.41$9.20$10.30$10.27$9.90$9.11$8.78$8.32$8.99$9.53$13.15$9.94$8.37$6.15$5.99$4.55
Oct$5.70$5.74$5.81$6.06$5.96$6.59$7.84$8.94$11.47$12.93$13.29$12.60$11.13$11.55$11.02$10.43$10.19$12.71$13.73$10.36$10.17$8.51$8.93$7.47
Nov$16.51$15.83$15.01$14.95$15.44$15.24$15.57$14.03$16.18$16.67$16.93$16.51$15.64$14.53$14.40$13.63$12.87$13.77$14.03$13.73$12.47$12.69$12.55$16.32
Dec$27.53$23.64$21.51$21.16$20.25$19.29$20.71$17.72$20.65$21.99$23.10$23.00$23.02$22.67$23.21$22.72$20.42$22.43$20.15$18.16$19.81$21.40$20.70$27.52
HEunconstrained0.19590.4048$2.81$104.4137.6%3,298
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($12.81/MWh).

HE (peak: $12.81/MWh)
01234567891011121314151617181920212223
Jan$2.73$2.95$3.09$2.98$3.05$3.15$3.82$5.65$3.80$2.47$1.99$1.84$1.78$1.82$1.91$2.01$2.21$2.95$3.76$3.84$3.70$3.25$2.60$2.48
Feb$2.66$2.61$2.64$2.51$2.80$2.64$2.83$3.22$2.51$1.73$1.40$1.37$1.35$1.37$1.44$1.47$1.54$1.62$1.77$1.94$1.94$1.99$2.09$2.04
Mar$4.26$4.10$4.31$4.58$5.44$7.36$8.49$5.68$4.67$4.46$3.79$4.09$4.03$4.42$4.14$4.29$4.63$5.04$5.37$5.36$4.80$4.32$4.42$4.41
Apr$4.73$4.90$4.97$5.66$6.41$8.00$7.12$4.42$3.73$3.52$3.62$3.90$3.67$3.59$3.91$4.37$4.53$4.65$4.67$5.05$3.89$3.69$4.12$4.60
May$1.63$1.71$1.55$1.62$1.89$1.86$1.51$1.36$1.45$1.55$2.28$3.80$5.09$8.43$11.26$12.34$12.81$9.96$7.24$7.36$5.28$2.58$1.81$1.90
Jun$0.81$0.74$0.78$0.67$0.74$0.77$0.75$0.55$0.91$0.92$1.41$1.89$3.08$4.38$5.46$7.09$9.26$6.40$4.60$5.14$5.27$1.22$0.71$0.50
Jul$0.42$0.45$0.44$0.44$0.53$0.51$0.73$0.48$0.45$0.53$0.65$0.87$1.61$1.82$1.90$2.33$2.46$2.31$2.52$2.16$1.60$0.75$0.37$0.28
Aug$0.52$0.41$0.35$0.37$0.40$0.55$0.79$0.75$0.81$1.10$1.30$1.50$1.59$1.90$2.05$2.40$2.40$2.29$2.85$2.49$1.47$1.13$0.64$0.49
Sep$1.74$1.62$1.62$1.63$1.69$1.70$1.70$1.25$0.92$1.35$1.66$1.73$1.88$1.98$2.36$2.19$2.19$3.13$3.31$2.42$1.94$1.61$1.47$1.23
Oct$2.15$2.15$2.25$2.46$2.71$3.33$3.81$2.18$1.05$1.30$1.66$1.75$1.83$1.77$2.35$2.01$2.51$4.79$3.62$2.32$1.73$1.54$1.69$1.84
Nov$3.60$3.30$3.43$3.51$3.58$4.06$6.86$6.43$2.88$2.55$2.28$2.26$2.21$2.10$2.36$2.65$3.67$5.49$4.09$3.46$3.19$3.65$3.37$3.43
Dec$2.29$2.20$2.32$2.33$2.36$2.34$2.82$2.57$1.69$1.46$0.88$0.76$0.95$0.88$0.93$1.26$2.25$3.22$2.87$2.77$2.62$2.20$2.20$2.09
IPLunconstrained0.20340.4186$3.21$92.3541.3%3,621
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($12.74/MWh).

IPL (peak: $12.74/MWh)
01234567891011121314151617181920212223
Jan$2.87$3.09$3.25$3.19$3.29$3.36$4.41$6.34$3.63$2.52$2.03$1.86$1.81$1.82$1.92$1.98$2.19$2.85$3.48$3.53$3.50$3.16$2.59$2.58
Feb$2.55$2.45$2.39$2.23$2.60$2.48$3.13$3.72$3.06$1.96$1.56$1.39$1.47$1.49$1.36$1.40$1.51$1.43$1.84$1.71$1.73$1.72$1.78$1.87
Mar$3.85$3.73$3.92$4.33$5.18$7.20$8.67$6.24$4.66$4.38$3.84$4.20$4.33$4.77$4.51$4.62$4.61$4.94$5.12$4.84$4.19$3.79$4.05$4.16
Apr$5.27$5.56$5.60$6.38$7.65$10.19$9.23$5.86$5.07$4.94$5.12$5.46$5.20$4.89$5.40$5.84$5.96$5.83$6.54$7.14$4.40$3.43$4.46$4.78
May$1.74$1.77$1.63$1.75$2.07$2.30$2.07$1.68$1.91$2.24$3.01$4.10$5.76$8.43$10.70$11.94$12.08$9.93$7.02$7.00$4.92$2.95$2.27$2.17
Jun$0.49$0.49$0.48$0.46$0.51$0.65$0.52$0.50$0.77$1.04$1.83$3.07$5.15$8.17$9.92$11.47$12.74$10.87$7.86$5.34$3.17$1.16$0.56$0.40
Jul$0.49$0.59$0.57$0.56$0.69$0.70$0.86$0.54$0.58$0.75$0.83$0.95$1.95$2.10$2.17$2.68$2.83$2.61$2.81$2.73$1.80$0.88$0.49$0.37
Aug$0.46$0.37$0.31$0.34$0.41$0.52$0.78$0.75$0.78$0.84$0.93$1.16$1.64$1.93$2.57$3.31$4.03$2.84$4.22$2.62$2.03$0.97$0.48$0.35
Sep$1.62$1.54$1.54$1.71$1.94$2.28$1.68$1.08$0.80$1.19$1.48$1.80$2.02$2.15$2.31$2.37$2.56$3.86$3.91$2.93$2.02$1.54$1.42$1.24
Oct$3.41$3.21$3.36$3.86$4.78$5.43$6.04$4.09$1.96$1.74$2.14$2.76$3.09$3.30$3.73$4.17$5.88$10.05$8.93$6.11$3.13$2.13$2.41$2.81
Nov$3.42$3.08$3.12$3.33$3.42$3.95$6.70$6.38$3.06$2.44$2.17$2.08$2.03$1.98$2.19$2.72$3.51$5.69$4.52$4.01$3.05$3.53$3.17$3.32
Dec$2.55$2.55$2.55$2.67$2.67$2.73$3.32$2.77$2.00$1.71$1.20$0.99$0.91$1.02$1.13$1.56$2.52$3.46$3.28$3.08$3.02$2.71$2.86$2.61
LAFAtransmission0.82800.4181$9.26$601.0268.8%6,022
Transmission-constrained zones have flow limits on power lines. Dispatchable resources reduce peak flows by providing local supply or reducing demand during congestion events. Consistent resources lower baseline load, reducing the magnitude of peak flows.
PrimarydispatchableBattery Storage, Demand Response
Dispatches during congestion events to reduce line loading
SecondaryconsistentEnergy Efficiency (Metered), Weatherization
Reduces baseline load, lowering chronic transmission stress
TertiaryvariableSolar PV
Adds local generation (value depends on coincidence with peak congestion)

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($58.11/MWh).

LAFA (peak: $58.11/MWh)
01234567891011121314151617181920212223
Jan$5.79$5.10$4.70$4.22$4.37$5.47$7.88$11.91$10.32$6.26$4.69$4.61$4.51$3.76$3.68$4.00$6.83$14.53$12.75$7.92$6.50$5.82$4.92$4.96
Feb$4.76$4.40$3.93$4.45$4.92$6.38$10.56$15.58$12.83$9.05$8.16$8.00$7.19$6.11$4.51$4.16$5.37$11.36$9.68$6.42$5.36$5.14$4.36$5.19
Mar$4.84$4.36$3.98$3.71$3.57$4.12$6.65$6.32$4.11$4.28$4.55$5.11$6.23$7.36$8.85$9.88$10.25$8.86$8.47$8.33$6.59$5.59$5.30$4.94
Apr$3.30$2.98$2.77$2.89$3.09$5.02$4.77$3.42$2.86$3.03$2.71$3.17$4.49$6.25$7.97$10.47$10.13$9.50$9.25$7.61$5.30$3.78$3.31$2.95
May$3.29$2.98$2.65$2.25$2.75$4.62$5.39$4.84$4.93$5.63$7.36$13.58$20.42$37.20$52.36$58.11$57.84$45.49$32.90$36.25$22.56$10.21$5.16$4.05
Jun$3.81$2.56$1.75$1.79$2.35$4.25$5.98$6.94$7.87$7.84$9.01$11.19$13.09$14.66$16.48$18.84$20.38$21.59$21.36$20.63$17.26$10.72$8.02$5.57
Jul$7.00$3.42$2.25$2.06$3.51$7.36$8.82$10.97$14.19$15.69$16.59$20.65$23.35$25.99$25.97$29.02$36.59$40.65$46.22$37.82$25.95$20.90$13.76$9.57
Aug$3.03$1.61$1.41$1.84$2.93$6.41$7.15$6.87$8.05$9.17$9.61$12.75$13.21$14.71$16.30$16.89$19.15$21.86$28.49$21.03$17.26$11.18$7.56$5.14
Sep$2.04$1.80$1.82$2.10$3.57$8.85$13.61$9.58$6.93$7.63$6.81$7.24$5.94$6.19$6.36$7.12$8.85$12.25$15.20$10.18$8.26$5.52$3.93$2.48
Oct$3.44$3.22$2.96$3.24$4.26$9.30$15.38$15.56$7.43$6.09$5.31$5.19$5.58$6.24$7.34$8.21$9.17$14.04$10.34$5.36$4.56$4.31$3.60$3.04
Nov$3.67$3.30$3.24$3.47$3.72$4.89$8.94$12.05$7.90$5.87$5.30$4.99$4.39$4.69$4.74$4.83$5.43$9.31$8.67$5.77$4.78$4.30$3.87$3.89
Dec$6.25$5.78$5.74$5.41$5.71$6.69$8.99$12.42$11.66$9.26$7.00$6.47$6.28$5.67$5.54$6.19$12.43$19.67$12.72$9.17$7.73$7.05$6.21$5.99
LEPAtransmission0.78580.4174$9.30$523.6268.6%6,013
Transmission-constrained zones have flow limits on power lines. Dispatchable resources reduce peak flows by providing local supply or reducing demand during congestion events. Consistent resources lower baseline load, reducing the magnitude of peak flows.
PrimarydispatchableBattery Storage, Demand Response
Dispatches during congestion events to reduce line loading
SecondaryconsistentEnergy Efficiency (Metered), Weatherization
Reduces baseline load, lowering chronic transmission stress
TertiaryvariableSolar PV
Adds local generation (value depends on coincidence with peak congestion)

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($53.77/MWh).

LEPA (peak: $53.77/MWh)
01234567891011121314151617181920212223
Jan$8.19$6.72$6.45$6.14$6.19$7.41$13.18$20.64$17.19$13.36$9.50$7.51$6.91$4.82$4.65$4.77$7.46$14.88$12.09$7.75$6.49$6.24$5.45$5.83
Feb$4.97$4.53$4.12$4.57$5.03$5.93$9.70$14.34$11.99$8.23$7.79$7.76$7.01$5.98$4.41$4.05$5.21$11.17$9.69$6.36$5.33$5.16$4.57$5.34
Mar$4.84$4.35$3.97$3.79$3.63$4.14$6.74$6.35$4.01$4.22$4.39$4.94$5.93$6.94$8.26$9.18$9.32$8.33$8.33$8.05$6.50$5.67$5.42$5.13
Apr$3.18$2.89$2.71$2.81$3.06$4.96$4.76$3.42$2.76$2.86$2.52$2.78$3.77$5.24$6.63$8.92$8.73$8.29$8.47$7.03$4.94$3.51$3.21$2.88
May$3.24$2.91$2.62$2.29$2.80$4.60$5.33$4.82$4.91$5.55$7.33$13.00$19.26$34.35$47.87$53.77$53.65$43.26$30.93$31.95$19.89$9.46$5.07$3.72
Jun$3.72$2.47$1.68$1.78$2.31$4.22$5.99$6.93$7.84$7.84$9.03$11.27$13.12$14.71$16.34$18.55$20.18$21.28$21.29$20.52$17.05$10.60$7.91$5.46
Jul$7.03$3.41$2.23$2.05$3.51$7.37$8.79$10.92$14.21$15.78$16.79$20.87$23.58$26.35$26.37$29.36$36.87$40.58$45.98$37.62$25.92$20.85$13.77$9.54
Aug$3.04$1.61$1.42$1.85$2.94$6.41$7.13$6.87$8.07$9.21$9.65$12.82$13.25$14.83$16.50$17.04$19.34$22.05$28.61$21.08$17.31$11.21$7.56$5.15
Sep$2.06$1.82$1.81$2.08$3.57$8.84$13.55$9.50$6.86$7.66$6.82$7.07$5.78$6.63$7.54$8.28$9.69$12.47$15.52$10.40$8.41$5.59$3.93$2.45
Oct$3.12$3.01$2.83$3.17$4.23$9.35$15.51$15.61$7.39$5.97$5.10$5.05$5.38$5.68$6.80$7.62$9.33$14.13$10.55$5.23$4.02$3.70$3.14$2.72
Nov$3.73$3.43$3.25$3.46$3.70$4.85$8.84$11.95$7.94$5.51$5.11$4.82$4.41$4.72$5.02$5.17$5.96$9.62$8.74$5.84$4.80$4.34$3.90$3.90
Dec$6.43$5.89$5.92$5.45$5.55$6.67$9.14$12.91$11.82$9.92$7.60$7.00$6.74$5.98$5.90$6.60$12.87$20.12$13.14$9.16$7.60$6.58$6.15$5.99
MDUboth0.58730.5765$11.89$147.0481.0%7,092
Zones with both transmission and generation constraints benefit from a diversified DER portfolio. Dispatchable resources handle acute congestion events while consistent resources address the structural supply deficit.
PrimarydispatchableBattery Storage, Demand Response
Addresses acute congestion and generation shortfalls
SecondaryconsistentEnergy Efficiency (Metered), Weatherization
Reduces chronic load, easing both transmission and generation stress
TertiaryvariableSolar PV
Adds local supply during daylight hours

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($26.37/MWh).

MDU (peak: $26.37/MWh)
01234567891011121314151617181920212223
Jan$14.19$14.43$14.24$14.43$15.39$15.95$19.25$25.53$19.29$15.53$12.93$12.70$12.00$11.62$10.67$10.62$11.39$14.22$14.86$16.77$15.87$14.97$14.00$12.93
Feb$8.50$8.66$8.62$9.22$9.99$10.30$11.30$13.71$10.30$7.88$6.52$5.52$5.36$5.62$6.10$5.69$5.88$6.90$7.28$7.62$7.45$9.13$8.43$8.35
Mar$8.28$7.85$7.46$7.65$8.03$9.45$12.67$10.83$8.20$7.15$6.48$6.79$7.34$7.74$8.50$9.69$10.54$11.85$12.94$12.06$10.60$9.64$9.57$9.22
Apr$10.99$11.16$11.70$11.57$11.16$12.23$12.20$10.44$7.79$7.06$7.84$8.87$9.06$9.69$11.01$13.04$13.46$13.61$14.87$14.80$11.71$10.73$10.98$11.75
May$9.58$9.41$9.58$9.30$9.53$9.97$10.32$8.74$8.38$8.24$9.41$9.62$11.42$14.76$17.32$18.87$20.03$18.22$16.78$18.46$15.09$12.03$11.70$10.46
Jun$5.78$5.61$5.38$4.95$5.44$6.27$6.70$6.81$7.75$8.33$9.60$11.25$13.82$15.06$17.20$18.09$17.95$17.08$16.86$15.31$11.31$8.47$8.36$6.72
Jul$4.16$3.47$2.97$2.70$2.66$3.10$4.16$4.43$4.74$6.34$7.13$7.76$8.56$8.33$8.64$9.03$10.27$11.76$13.65$14.46$8.41$5.61$4.45$4.25
Aug$7.80$6.62$6.12$6.02$5.65$5.88$6.65$7.14$7.39$8.21$9.08$10.05$11.03$13.57$13.95$16.43$17.27$17.35$21.14$15.56$10.86$9.38$8.62$8.13
Sep$8.84$7.65$7.74$6.75$6.97$7.16$7.47$6.84$7.25$9.01$10.37$10.76$10.48$10.31$11.53$10.51$11.99$12.62$14.78$10.85$10.71$9.98$10.23$8.89
Oct$15.37$14.69$13.76$13.74$14.97$17.79$19.77$19.38$15.69$14.87$15.87$15.55$16.71$16.82$17.41$18.08$19.67$26.37$23.18$17.38$16.47$15.90$16.11$15.81
Nov$17.01$16.72$16.10$15.80$15.79$16.19$18.03$17.16$13.31$13.09$13.78$13.12$13.27$13.32$13.04$12.66$13.43$17.08$17.29$16.70$14.90$15.27$14.94$16.74
Dec$19.88$17.53$17.32$16.64$15.74$16.00$19.13$17.74$17.46$14.63$13.96$14.62$15.82$16.28$16.81$16.93$17.65$20.96$20.69$18.39$17.80$16.90$16.15$18.35
MECgeneration0.39370.5535$7.88$104.3066.4%5,818
Generation-constrained zones lack sufficient local supply. Consistent resources reduce demand permanently, easing the supply gap. Variable resources add local generation capacity.
PrimaryconsistentEnergy Efficiency (Metered), Weatherization, Combined Heat & Power
Permanently reduces demand, closing the local supply gap
SecondaryvariableSolar PV, Wind
Adds local generation to offset imports
TertiarydispatchableBattery Storage, Demand Response
Provides capacity during generation shortfalls

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($17.48/MWh).

MEC (peak: $17.48/MWh)
01234567891011121314151617181920212223
Jan$14.63$14.68$14.33$14.11$14.41$14.90$15.66$17.48$13.39$10.53$9.22$8.58$8.85$9.78$9.95$10.44$11.22$13.15$14.35$14.67$14.16$13.57$12.95$12.67
Feb$8.77$8.44$8.39$8.57$8.96$9.23$10.13$11.34$8.75$6.21$5.27$4.99$5.06$5.29$5.44$5.22$5.31$5.78$6.12$6.92$6.79$7.15$7.29$7.16
Mar$10.05$9.67$9.69$9.84$10.35$11.35$14.26$11.83$8.53$7.56$6.88$7.02$7.18$7.75$8.32$9.28$9.53$10.56$11.87$11.91$11.24$10.74$11.06$10.56
Apr$11.93$11.71$11.82$12.39$12.91$14.47$13.42$10.44$8.91$8.18$8.60$9.31$9.93$10.35$11.19$12.40$12.69$12.13$11.70$12.25$10.31$9.92$10.57$10.58
May$4.95$4.76$4.47$4.23$4.26$4.06$3.98$3.96$4.30$4.23$4.65$6.20$7.97$11.48$14.83$16.89$17.18$15.21$12.70$12.10$9.06$6.21$5.69$5.18
Jun$4.09$3.46$3.32$2.94$2.70$2.99$2.89$2.41$3.25$3.48$4.39$6.00$8.58$10.20$11.62$12.39$11.96$10.48$9.25$7.92$6.43$4.65$4.52$3.91
Jul$2.59$2.02$1.66$1.43$1.60$1.73$1.73$1.29$1.09$1.12$1.52$2.33$2.81$3.70$3.86$4.45$5.33$5.91$6.27$5.16$4.13$3.31$3.03$2.78
Aug$2.46$1.75$1.51$1.35$1.26$1.73$2.73$2.97$3.35$4.59$4.86$5.18$6.03$7.63$7.89$8.29$9.14$10.28$14.37$12.47$8.57$6.50$4.51$3.50
Sep$4.29$3.98$3.72$3.71$4.12$4.60$4.51$3.45$2.85$3.00$3.60$3.70$3.90$4.57$5.19$5.82$6.17$6.97$9.16$5.55$5.09$4.53$4.29$4.02
Oct$8.80$8.62$8.45$8.86$9.59$10.70$10.68$8.93$6.32$5.59$5.89$5.96$5.89$6.27$6.88$7.42$8.20$11.71$9.40$7.94$8.20$8.29$7.95$7.91
Nov$8.54$8.08$7.94$8.02$8.27$9.15$11.16$12.40$7.88$6.71$6.02$5.83$6.35$6.22$6.40$6.76$8.36$10.87$10.42$9.95$9.66$9.65$9.16$9.09
Dec$9.96$9.24$8.70$8.56$8.61$9.34$11.81$12.85$10.99$8.36$6.48$5.86$5.26$5.87$6.32$7.44$10.60$14.99$14.30$14.09$13.24$12.30$11.38$10.18
MGEunconstrained0.26750.4058$3.78$106.2151.6%4,523
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($14.78/MWh).

MGE (peak: $14.78/MWh)
01234567891011121314151617181920212223
Jan$3.71$3.91$3.98$4.34$4.71$5.04$5.61$6.20$3.75$3.56$3.38$3.05$2.85$2.87$2.73$2.64$2.15$2.29$2.61$2.70$2.50$2.96$2.99$2.82
Feb$1.86$1.90$2.05$2.09$2.44$2.31$2.88$3.45$2.62$1.76$1.27$1.12$1.30$1.31$1.41$1.44$1.34$1.25$1.34$1.54$1.56$1.62$1.62$1.65
Mar$3.79$3.65$3.81$4.11$4.51$4.90$6.05$4.88$3.84$4.14$3.97$4.27$4.54$4.71$5.16$5.63$5.47$5.29$4.78$4.81$4.34$3.81$4.00$4.05
Apr$4.09$4.21$4.44$4.71$4.91$5.50$4.83$3.75$4.32$4.46$4.74$5.18$5.58$5.92$6.53$7.27$7.52$6.67$5.39$5.30$4.09$3.32$3.22$3.61
May$1.48$1.40$1.34$1.39$1.63$1.42$1.43$1.66$1.98$2.64$3.14$4.80$6.07$9.49$12.81$14.58$14.67$11.72$8.52$7.65$5.05$2.57$2.04$1.60
Jun$1.22$1.05$0.89$0.95$0.96$1.64$1.73$1.43$2.40$2.58$4.14$6.72$10.49$12.44$13.24$14.78$12.48$9.39$6.37$3.94$2.84$1.04$0.81$0.70
Jul$1.27$1.25$1.12$1.07$1.46$1.58$1.90$1.56$2.12$2.84$3.12$3.59$4.23$4.65$4.51$5.57$6.07$4.36$3.50$2.28$1.87$0.83$0.76$0.82
Aug$0.77$0.58$0.46$0.40$0.44$0.70$1.05$1.28$1.69$2.17$3.26$4.03$5.08$6.30$5.96$5.79$5.68$4.10$6.24$5.71$3.45$2.46$1.33$0.99
Sep$1.26$1.26$1.26$1.59$2.12$2.38$1.42$1.14$1.85$2.74$2.95$3.40$3.80$3.92$4.36$4.25$3.83$2.80$2.42$1.94$1.17$0.78$0.77$0.78
Oct$4.94$4.79$5.08$6.03$7.12$7.49$6.44$4.49$3.39$3.37$3.35$3.54$3.57$3.90$4.15$4.34$5.36$6.22$4.72$3.48$2.79$2.68$3.16$3.59
Nov$4.01$3.97$4.21$4.45$4.54$4.76$5.67$6.14$2.54$2.70$2.48$2.47$2.86$2.88$2.85$3.18$3.67$4.08$3.57$3.86$3.52$3.72$3.35$3.62
Dec$5.70$5.61$5.77$6.08$5.95$5.62$7.31$6.06$4.08$3.61$2.94$2.57$2.44$2.48$2.25$2.69$4.15$5.11$4.95$5.16$5.79$4.94$5.28$5.28
MIUPgeneration0.32830.5595$4.25$105.5855.4%4,856
Generation-constrained zones lack sufficient local supply. Consistent resources reduce demand permanently, easing the supply gap. Variable resources add local generation capacity.
PrimaryconsistentEnergy Efficiency (Metered), Weatherization, Combined Heat & Power
Permanently reduces demand, closing the local supply gap
SecondaryvariableSolar PV, Wind
Adds local generation to offset imports
TertiarydispatchableBattery Storage, Demand Response
Provides capacity during generation shortfalls

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($14.53/MWh).

MIUP (peak: $14.53/MWh)
01234567891011121314151617181920212223
Jan$3.70$3.84$4.07$4.21$4.42$4.78$5.64$7.11$4.60$3.20$3.07$3.10$3.30$3.04$2.40$2.20$2.25$3.09$3.65$3.13$3.24$3.51$3.00$2.65
Feb$1.87$1.90$2.00$2.02$2.46$2.55$3.05$3.33$3.79$3.23$2.84$2.19$2.17$2.13$2.22$1.65$1.05$1.13$1.24$1.80$1.72$1.57$1.57$1.79
Mar$3.42$3.51$3.28$3.96$4.67$5.21$6.55$4.80$4.31$4.09$3.67$3.80$3.83$3.90$4.02$4.50$4.26$4.47$4.43$4.50$3.87$3.41$3.24$3.43
Apr$3.04$3.21$3.50$3.65$3.62$3.66$3.43$3.63$4.01$3.86$3.80$3.47$3.92$3.47$3.98$4.84$5.20$5.31$5.16$5.77$3.50$2.86$2.22$2.83
May$1.52$1.56$1.66$1.62$1.94$1.68$1.71$2.00$2.17$2.37$2.55$3.96$5.57$9.21$12.05$14.03$14.53$12.14$10.00$10.60$7.20$3.91$3.01$1.74
Jun$2.07$1.90$1.33$1.01$1.11$2.02$1.76$2.32$3.69$3.72$3.64$4.24$6.50$7.44$8.46$9.06$9.99$8.36$6.11$5.97$5.04$3.50$4.17$2.77
Jul$1.97$1.83$1.50$1.69$1.59$1.60$2.13$2.05$2.07$2.71$2.29$2.91$4.35$4.14$3.72$4.94$6.52$6.50$7.49$8.66$6.67$4.22$3.40$2.74
Aug$2.02$1.59$1.42$1.28$1.20$1.30$1.63$2.75$4.51$5.47$5.99$5.65$5.81$5.77$5.53$4.92$4.98$4.36$6.03$5.05$4.08$3.42$3.32$2.20
Sep$1.25$0.98$1.01$1.23$1.74$2.04$1.88$2.42$3.71$4.37$5.62$6.38$6.03$5.80$5.65$5.53$6.74$6.54$9.39$5.55$3.64$2.56$2.98$1.82
Oct$4.20$4.29$4.42$4.93$5.71$6.37$7.02$7.76$7.04$7.18$7.13$7.09$6.75$6.66$6.99$7.81$8.00$9.55$9.47$5.84$5.27$4.22$3.73$2.72
Nov$3.48$3.68$3.93$4.50$4.80$4.98$6.82$7.72$4.67$4.24$4.20$4.14$4.19$4.15$3.84$4.65$4.00$5.92$5.63$4.24$3.71$4.03$3.64$3.39
Dec$5.19$4.98$5.49$5.92$5.87$5.38$6.83$7.36$5.56$5.37$5.66$5.67$5.44$5.68$5.05$4.48$3.85$4.54$4.31$4.24$4.51$3.67$3.96$4.19
MPtransmission0.52350.4678$13.11$141.3375.0%6,572
Transmission-constrained zones have flow limits on power lines. Dispatchable resources reduce peak flows by providing local supply or reducing demand during congestion events. Consistent resources lower baseline load, reducing the magnitude of peak flows.
PrimarydispatchableBattery Storage, Demand Response
Dispatches during congestion events to reduce line loading
SecondaryconsistentEnergy Efficiency (Metered), Weatherization
Reduces baseline load, lowering chronic transmission stress
TertiaryvariableSolar PV
Adds local generation (value depends on coincidence with peak congestion)

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($59.46/MWh).

MP (peak: $59.46/MWh)
01234567891011121314151617181920212223
Jan$12.41$11.52$10.85$11.01$11.60$12.16$14.49$18.45$12.84$10.12$7.83$7.32$6.94$5.77$4.81$4.86$5.25$7.07$6.86$8.20$8.31$7.57$8.74$9.41
Feb$4.94$5.32$5.48$5.99$6.54$6.60$7.59$10.11$7.26$4.65$4.66$3.41$3.20$3.09$3.34$3.19$3.42$3.62$3.83$4.99$4.44$4.67$4.47$4.25
Mar$4.32$4.19$4.19$4.70$5.09$6.26$8.99$7.60$5.36$4.81$4.10$4.20$4.32$4.53$5.11$5.93$6.42$7.10$8.33$7.68$6.28$5.34$4.88$4.65
Apr$4.29$4.91$5.33$5.38$5.25$6.43$6.30$5.42$4.29$3.96$3.52$3.52$3.60$4.00$5.23$6.70$7.35$7.38$8.21$8.66$5.71$5.02$4.59$4.64
May$3.96$4.38$4.42$4.27$4.31$3.94$4.23$4.03$4.02$3.74$4.28$5.18$6.38$9.88$12.54$14.44$14.61$12.99$10.38$12.55$9.13$5.73$4.84$3.98
Jun$3.83$3.12$2.52$2.26$2.20$3.02$3.25$3.97$6.21$5.98$5.25$6.31$7.50$7.94$9.58$10.86$10.91$10.29$9.82$9.83$8.35$6.20$6.58$4.55
Jul$4.14$2.41$1.97$1.70$1.89$2.04$2.74$2.92$3.58$4.52$5.06$5.19$6.06$6.62$6.54$8.03$8.50$9.02$10.11$11.51$9.02$7.61$8.48$6.78
Aug$5.06$3.83$3.47$3.43$3.33$3.92$4.34$4.83$5.62$7.63$8.40$8.25$8.54$9.37$8.98$9.37$9.11$10.35$14.43$12.14$8.02$7.56$9.13$6.72
Sep$6.33$4.77$3.94$3.85$4.07$5.67$7.14$9.89$13.16$15.99$17.27$17.10$16.04$14.32$13.80$12.47$12.51$12.26$16.47$12.71$11.39$9.80$12.39$10.21
Oct$14.04$12.05$11.65$11.21$11.62$16.30$17.57$25.47$30.24$31.56$31.52$29.69$26.61$26.14$24.33$23.38$19.36$22.26$24.01$23.42$24.11$24.57$26.34$21.46
Nov$31.94$28.16$25.60$26.41$26.95$25.98$24.83$21.32$28.88$30.29$29.84$28.44$27.42$25.82$25.51$24.37$22.47$20.82$20.48$22.04$21.97$22.82$24.15$31.71
Dec$54.48$47.61$44.14$43.55$42.19$40.60$41.19$35.22$42.28$45.53$47.70$48.96$51.70$51.20$52.52$50.92$45.58$45.75$41.47$38.03$42.51$47.09$45.38$59.46
MPWunconstrained0.20360.4472$3.36$105.3045.5%3,982
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($14.23/MWh).

MPW (peak: $14.23/MWh)
01234567891011121314151617181920212223
Jan$4.44$4.43$4.37$4.58$4.79$4.97$5.64$6.28$4.02$3.03$2.78$2.67$2.49$2.71$2.80$2.84$2.86$2.96$3.05$3.06$3.26$3.55$3.27$3.35
Feb$1.92$1.92$2.00$1.98$2.34$2.25$2.76$3.20$3.02$1.81$1.36$1.19$1.30$1.40$1.46$1.46$1.48$1.40$1.65$1.50$1.50$1.54$2.06$1.82
Mar$4.07$3.81$4.00$4.18$4.72$5.07$6.00$4.53$3.66$3.85$3.76$3.92$4.13$4.43$4.83$5.28$5.02$5.30$5.04$4.77$4.42$4.08$4.29$4.05
Apr$4.99$5.01$5.14$5.46$5.90$6.58$6.14$4.69$4.77$4.52$4.88$5.39$5.89$6.16$6.78$7.84$7.77$6.79$5.22$5.31$4.43$4.18$4.21$4.47
May$1.51$1.66$1.65$1.43$1.48$1.43$1.16$1.41$1.68$1.81$2.37$4.00$5.40$9.02$12.38$14.23$14.00$11.68$8.09$7.05$5.27$3.31$2.15$1.57
Jun$1.35$0.87$0.79$0.85$0.81$1.06$0.86$0.58$1.12$1.24$2.17$3.58$5.83$7.55$8.38$9.47$8.12$6.72$5.38$5.06$5.19$3.49$2.91$1.66
Jul$0.72$0.73$0.66$0.64$0.90$0.98$1.06$0.67$0.62$0.68$0.79$1.00$1.40$1.68$1.50$1.84$2.01$1.61$2.15$2.22$1.54$0.48$0.33$0.39
Aug$0.56$0.45$0.35$0.37$0.41$0.68$0.85$0.85$0.96$1.10$1.34$1.80$2.23$2.88$3.05$3.09$3.18$2.75$3.99$3.41$2.14$1.47$0.93$0.73
Sep$2.09$2.02$1.97$2.23$2.66$2.85$2.03$1.22$1.02$1.12$1.53$1.51$2.30$2.74$3.16$3.27$3.18$3.38$5.18$3.30$2.63$1.95$2.04$1.55
Oct$4.50$4.35$4.52$4.97$5.33$5.57$4.31$3.52$1.93$2.79$2.91$3.05$3.15$3.34$3.52$4.05$3.71$4.77$3.72$2.87$2.60$2.76$3.45$3.69
Nov$4.32$4.14$4.26$4.26$4.27$4.37$4.82$4.77$2.44$2.52$2.62$2.73$3.07$3.05$3.12$3.38$3.33$3.53$3.59$3.80$3.96$4.08$4.09$4.22
Dec$4.31$4.13$4.37$4.56$4.27$4.27$5.74$5.56$4.53$3.12$2.47$2.22$2.00$1.87$2.00$2.92$3.43$3.64$3.67$4.48$4.29$4.20$4.26$4.40
NIPSunconstrained0.20160.4020$2.67$107.8836.5%3,202
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($12.97/MWh).

NIPS (peak: $12.97/MWh)
01234567891011121314151617181920212223
Jan$2.58$2.65$2.71$2.94$3.08$3.41$3.88$4.24$3.07$2.65$2.46$2.22$2.03$1.94$2.00$1.92$1.87$1.84$2.25$2.41$2.51$2.11$1.90$2.14
Feb$1.57$1.78$1.80$1.66$1.87$1.61$1.77$1.78$1.67$1.29$1.13$1.10$1.26$1.18$1.16$1.25$1.16$1.08$1.18$1.18$1.01$1.17$0.92$1.16
Mar$2.80$2.76$2.72$2.59$2.69$2.87$3.24$2.94$2.51$2.81$2.81$3.02$3.14$3.38$3.59$3.75$3.55$3.42$3.27$3.32$2.88$2.41$2.49$2.31
Apr$1.76$1.93$2.06$2.18$2.33$3.32$3.51$2.72$1.94$1.73$1.50$1.41$1.81$1.97$2.16$2.79$2.72$2.28$2.14$2.22$1.56$1.31$1.25$0.98
May$1.43$1.48$1.29$1.42$1.75$1.79$1.39$0.99$1.07$1.15$1.79$3.04$4.48$8.07$11.42$12.97$12.76$10.15$7.25$7.22$4.77$2.59$1.41$1.25
Jun$0.57$0.54$0.43$0.48$0.52$0.82$0.68$0.63$1.25$1.36$2.16$3.28$4.95$5.97$6.34$6.51$6.09$5.12$3.58$2.16$1.58$0.65$0.55$0.46
Jul$0.91$0.91$0.81$0.82$0.99$1.06$1.13$0.85$0.98$0.97$1.40$1.71$2.19$2.52$2.36$2.95$3.11$2.31$2.80$3.06$1.64$0.62$0.54$0.59
Aug$0.66$0.56$0.49$0.52$0.72$0.81$0.87$0.75$0.74$0.90$1.25$1.26$1.51$1.93$2.14$2.45$2.42$2.07$2.76$2.18$1.49$1.01$0.62$0.52
Sep$1.33$1.34$1.39$1.84$2.91$3.70$2.08$1.04$0.71$0.95$1.07$1.09$1.18$1.28$1.57$1.70$1.73$2.44$2.91$2.02$1.37$1.05$1.24$1.06
Oct$4.22$4.17$4.56$5.59$7.60$8.36$8.78$5.34$2.29$1.88$1.65$2.19$1.84$1.99$2.82$3.46$4.07$6.56$5.82$4.03$3.12$3.02$2.69$3.30
Nov$2.10$1.87$1.95$2.05$2.25$2.94$6.23$6.92$2.96$2.34$1.95$1.82$1.76$1.72$1.69$2.45$3.59$5.24$3.87$3.56$2.89$2.88$2.73$2.62
Dec$5.67$5.84$5.58$5.83$5.85$5.42$6.81$6.22$3.79$2.84$2.09$1.86$1.76$1.62$2.06$3.11$4.79$6.31$5.83$5.83$6.14$6.07$6.38$5.83
NSPunconstrained0.37700.4693$6.31$142.8365.2%5,709
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($18.34/MWh).

NSP (peak: $18.34/MWh)
01234567891011121314151617181920212223
Jan$6.87$7.63$8.08$8.19$9.03$9.63$12.19$18.34$12.17$9.49$7.15$6.63$5.91$5.31$4.56$4.50$5.02$6.82$6.47$8.08$8.07$7.42$8.19$6.39
Feb$5.31$5.77$6.00$6.49$7.19$7.10$7.76$10.20$7.18$5.38$4.85$3.72$3.60$3.77$3.93$3.62$3.68$3.56$3.93$4.96$4.38$4.44$4.85$4.18
Mar$5.92$5.76$5.53$6.07$6.39$7.33$10.40$8.54$5.70$5.05$4.66$4.85$5.08$5.47$6.11$6.98$7.41$7.93$8.93$8.51$7.37$6.54$6.06$5.78
Apr$6.53$6.71$6.52$6.85$7.00$7.63$7.40$5.03$4.59$4.33$4.51$5.32$5.63$6.39$7.41$8.57$9.01$8.68$9.09$9.34$6.72$5.90$5.44$5.98
May$5.26$5.38$5.35$5.26$5.37$4.87$4.68$4.33$3.91$3.74$4.06$5.72$7.01$10.29$13.63$15.69$16.04$13.55$11.76$12.23$9.38$6.55$6.04$5.14
Jun$2.38$2.06$1.90$1.72$1.91$2.07$1.72$1.99$2.54$3.04$3.40$5.04$7.58$8.98$10.70$11.15$11.42$10.29$8.31$6.42$5.02$3.46$3.97$2.69
Jul$1.71$1.34$1.13$1.18$1.42$1.52$2.10$2.00$2.45$2.54$3.32$4.11$4.48$5.11$4.96$5.83$7.08$7.92$9.71$10.37$7.41$4.53$3.25$1.99
Aug$2.37$1.78$1.55$1.37$1.17$1.74$2.32$3.02$3.83$4.88$5.42$6.09$6.72$8.28$8.71$9.31$9.65$11.75$16.07$12.94$9.14$6.97$4.82$3.21
Sep$3.52$3.18$3.02$2.95$3.34$3.63$3.68$3.88$4.35$5.66$6.34$6.67$6.30$6.60$6.57$6.62$7.36$8.15$13.37$8.63$6.61$4.64$4.34$3.12
Oct$7.84$7.87$8.15$8.76$9.18$9.06$7.95$6.07$4.45$4.41$5.19$4.93$5.80$6.38$7.25$7.48$9.47$15.16$13.28$8.13$6.80$6.63$6.94$6.90
Nov$6.56$6.68$7.04$7.69$7.72$8.01$9.96$10.11$4.96$4.68$4.25$4.20$4.48$4.62$4.74$4.80$6.09$8.93$8.85$7.72$6.80$6.84$6.27$6.41
Dec$5.59$5.85$6.71$7.08$7.27$7.93$10.41$10.60$7.65$5.44$4.37$4.02$3.67$3.84$3.61$4.43$6.47$9.37$8.75$8.55$7.50$6.19$6.09$6.00
OTPtransmission0.51590.4977$11.11$143.2577.5%6,791
Transmission-constrained zones have flow limits on power lines. Dispatchable resources reduce peak flows by providing local supply or reducing demand during congestion events. Consistent resources lower baseline load, reducing the magnitude of peak flows.
PrimarydispatchableBattery Storage, Demand Response
Dispatches during congestion events to reduce line loading
SecondaryconsistentEnergy Efficiency (Metered), Weatherization
Reduces baseline load, lowering chronic transmission stress
TertiaryvariableSolar PV
Adds local generation (value depends on coincidence with peak congestion)

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($33.70/MWh).

OTP (peak: $33.70/MWh)
01234567891011121314151617181920212223
Jan$12.55$12.45$12.25$12.58$13.39$13.79$16.60$22.40$16.18$12.78$10.26$10.26$9.39$8.62$7.60$7.65$8.21$10.60$10.76$12.83$12.18$11.15$11.28$10.44
Feb$6.10$6.46$6.60$7.19$8.09$8.24$9.56$12.59$9.24$6.21$5.86$4.46$4.30$4.50$4.83$4.52$4.78$5.25$5.49$6.51$5.95$7.30$6.56$5.73
Mar$6.56$6.32$6.20$6.60$7.05$8.31$11.50$9.58$7.14$6.33$5.66$5.96$6.29$6.64$7.27$8.36$9.07$10.06$11.20$10.43$9.04$7.89$7.58$7.21
Apr$7.47$7.80$7.94$7.95$7.86$9.09$9.54$7.71$6.02$5.52$6.01$6.42$6.34$7.17$8.32$9.84$10.42$10.38$11.84$12.55$9.46$8.00$7.60$8.17
May$6.47$6.38$6.63$6.25$6.51$6.61$7.07$5.84$5.49$5.31$5.55$6.73$8.08$11.49$14.05$15.77$16.36$14.44$12.67$13.73$10.24$7.39$6.46$6.14
Jun$3.97$3.48$3.22$3.20$3.06$2.92$3.30$3.92$5.82$5.99$5.42$5.85$7.18$7.24$9.16$10.66$11.07$9.46$8.22$6.97$5.67$4.62$5.20$3.65
Jul$3.20$2.22$1.98$2.00$1.85$2.07$2.81$3.28$3.86$4.46$4.93$5.30$6.05$6.05$5.62$7.45$8.12$9.13$11.98$13.27$9.57$6.56$5.28$4.07
Aug$4.65$3.24$2.63$2.71$2.51$3.51$4.51$5.88$6.90$8.81$8.97$9.03$9.70$11.47$11.81$11.70$11.58$14.58$21.12$18.05$12.23$10.74$9.75$6.80
Sep$5.19$4.26$3.59$3.41$3.70$4.83$6.52$8.86$11.10$12.75$14.36$14.49$14.48$13.01$12.19$11.80$12.17$12.49$18.07$13.70$12.70$9.96$9.73$7.86
Oct$9.37$8.04$7.52$7.33$7.87$10.15$12.27$15.93$19.68$20.81$20.55$19.91$18.80$19.37$17.72$17.20$15.70$17.87$19.29$18.88$18.32$18.38$17.64$14.38
Nov$18.83$18.25$17.11$17.06$17.41$17.43$17.51$16.57$20.13$21.07$21.41$20.88$19.29$18.23$17.71$16.66$15.31$15.00$15.64$15.48$14.78$15.45$15.69$19.69
Dec$32.75$27.67$25.47$23.94$23.82$23.01$24.71$21.09$24.97$27.26$27.82$28.27$28.06$28.42$29.15$27.73$22.99$24.58$23.28$22.02$23.45$26.20$25.26$33.70
SIGEunconstrained0.23280.4361$3.66$103.8644.0%3,859
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($12.70/MWh).

SIGE (peak: $12.70/MWh)
01234567891011121314151617181920212223
Jan$3.01$3.25$3.39$3.30$3.54$3.98$4.84$6.90$5.09$3.58$2.91$2.79$2.30$2.15$2.23$2.37$2.99$4.19$5.41$5.39$5.26$4.49$3.62$3.45
Feb$4.09$3.78$3.76$3.50$3.91$3.58$5.85$6.75$5.98$5.03$3.67$2.89$2.92$2.74$3.00$2.94$2.79$3.86$5.36$5.80$5.91$5.21$4.50$4.33
Mar$4.85$4.63$4.83$5.27$6.07$8.15$9.70$6.64$4.74$4.02$3.39$3.56$3.64$4.08$4.01$4.40$4.69$5.33$6.28$6.18$5.67$5.38$5.54$5.55
Apr$5.27$5.39$5.44$5.99$6.90$8.71$8.07$5.53$4.89$5.29$5.97$6.49$6.98$7.09$7.43$7.53$8.06$9.13$10.21$11.47$9.37$7.64$7.14$5.97
May$1.62$1.80$1.64$1.60$1.98$2.18$1.85$1.62$1.69$1.92$3.00$4.57$6.61$9.91$12.70$12.62$12.35$9.52$7.53$8.53$6.10$3.00$1.97$1.83
Jun$0.61$0.58$0.60$0.59$0.67$0.65$0.59$0.48$0.82$0.80$1.19$1.76$2.88$3.94$4.68$5.52$6.22$4.67$3.55$3.18$2.81$0.75$0.59$0.41
Jul$0.71$0.61$0.49$0.48$0.61$0.68$0.99$0.68$1.30$2.14$2.05$2.27$3.90$4.59$4.62$4.77$4.98$4.43$5.86$5.83$3.34$1.56$0.98$0.52
Aug$0.53$0.41$0.34$0.36$0.39$0.54$0.84$0.80$0.87$1.17$1.34$1.61$1.82$2.12$2.40$2.79$2.86$2.99$3.85$3.53$1.81$1.30$0.70$0.52
Sep$1.62$1.50$1.47$1.48$1.44$1.47$1.49$1.14$0.93$1.34$1.60$1.76$2.04$2.26$2.63$2.60$2.55$3.03$3.33$2.27$1.81$1.57$1.41$1.17
Oct$2.78$2.79$2.85$3.12$3.38$4.01$4.80$3.14$1.57$1.27$1.88$2.19$2.35$2.39$2.58$2.45$3.03$6.01$5.54$3.34$2.73$2.30$2.38$2.69
Nov$3.43$3.13$3.20$3.39$3.47$3.82$7.44$6.58$2.97$2.72$2.44$2.44$2.43$2.40$2.67$3.04$4.30$6.68$5.06$3.82$3.36$3.68$3.13$3.20
Dec$3.77$3.71$3.85$4.21$5.31$6.22$7.98$9.06$5.82$4.45$2.60$1.89$1.45$1.50$1.58$2.18$3.25$5.80$5.42$4.76$3.98$3.39$3.84$3.22
SIPCunconstrained0.21330.4078$4.47$105.2746.0%4,026
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($19.62/MWh).

SIPC (peak: $19.62/MWh)
01234567891011121314151617181920212223
Jan$6.02$6.37$6.90$7.23$7.40$8.07$9.01$9.88$7.81$5.14$3.92$3.83$3.93$3.96$3.80$4.16$4.46$5.42$5.82$6.54$6.58$6.07$5.87$5.44
Feb$8.47$8.50$8.79$9.10$9.60$9.84$11.60$10.93$7.96$6.35$5.10$4.55$4.22$4.40$4.19$4.59$5.69$6.25$6.87$8.16$8.18$7.93$8.14$8.25
Mar$10.82$10.04$10.51$11.44$12.94$16.19$19.62$11.76$7.55$5.70$5.02$5.25$4.84$5.35$5.88$7.09$9.75$12.82$15.25$15.81$13.38$13.36$13.50$12.88
Apr$10.62$10.28$10.18$11.27$12.81$14.31$13.41$9.10$7.80$6.77$7.15$6.96$6.60$7.03$7.45$8.50$9.70$10.75$11.87$12.74$10.07$10.27$10.87$10.80
May$2.13$2.13$1.95$1.84$2.06$2.87$2.01$1.76$1.64$1.65$2.13$3.29$4.62$7.77$10.92$12.01$11.67$9.29$6.52$6.92$4.79$2.75$2.38$2.46
Jun$0.74$0.77$0.78$0.68$0.70$0.85$0.58$0.65$0.79$0.84$1.29$1.66$2.72$3.47$4.00$4.25$4.07$3.59$2.67$2.33$1.69$0.95$0.72$0.71
Jul$0.41$0.45$0.45$0.48$0.53$0.47$0.55$0.44$0.30$0.30$0.49$0.83$1.46$1.80$1.98$2.35$2.54$2.55$2.74$2.45$1.80$0.87$0.44$0.30
Aug$0.49$0.36$0.30$0.32$0.33$0.57$0.86$0.91$1.06$1.48$1.59$1.85$1.89$2.19$2.12$2.11$2.84$3.35$4.37$4.33$2.12$1.45$0.91$0.63
Sep$2.54$2.35$2.39$2.34$2.19$1.99$1.97$1.45$1.03$1.46$1.75$2.41$2.85$3.45$4.51$4.69$3.82$3.49$4.14$3.28$2.91$2.48$2.27$1.96
Oct$2.29$2.29$2.42$2.44$2.74$3.38$3.11$1.91$1.27$1.66$1.94$2.20$2.30$2.31$2.86$3.11$3.09$5.26$4.51$2.58$2.37$2.44$2.61$2.49
Nov$4.45$3.99$4.11$4.51$4.51$4.49$4.69$5.19$2.54$1.98$1.95$1.95$2.15$2.07$1.95$2.04$2.73$3.78$3.93$3.86$3.81$3.91$3.58$3.78
Dec$2.64$2.33$2.53$2.46$2.45$2.74$3.05$3.40$2.50$2.09$1.30$1.16$1.18$1.19$1.08$1.38$1.96$3.07$2.70$3.06$2.85$2.54$2.67$2.28
SMEtransmission0.55800.4222$7.44$184.7063.8%5,592
Transmission-constrained zones have flow limits on power lines. Dispatchable resources reduce peak flows by providing local supply or reducing demand during congestion events. Consistent resources lower baseline load, reducing the magnitude of peak flows.
PrimarydispatchableBattery Storage, Demand Response
Dispatches during congestion events to reduce line loading
SecondaryconsistentEnergy Efficiency (Metered), Weatherization
Reduces baseline load, lowering chronic transmission stress
TertiaryvariableSolar PV
Adds local generation (value depends on coincidence with peak congestion)

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($45.07/MWh).

SME (peak: $45.07/MWh)
01234567891011121314151617181920212223
Jan$6.08$5.14$4.95$4.26$4.43$5.49$9.37$14.20$12.84$7.13$4.90$4.36$4.32$3.78$3.49$3.91$6.37$14.15$12.03$7.05$5.95$4.75$4.99$4.91
Feb$5.11$4.67$4.30$4.78$5.17$6.53$10.08$14.19$10.46$7.33$6.75$6.61$5.89$4.76$3.18$2.88$4.18$10.33$9.69$5.88$5.08$5.04$4.37$5.43
Mar$3.66$3.29$3.08$3.06$3.21$4.00$6.52$5.39$3.50$3.29$3.31$3.09$3.15$3.23$3.67$4.40$4.82$5.59$6.34$5.67$4.68$4.28$4.35$4.01
Apr$2.94$2.87$2.77$2.77$2.99$4.68$4.62$3.23$2.56$2.49$2.42$2.43$2.63$2.94$3.56$4.18$4.46$4.70$5.21$5.74$4.25$2.97$2.84$2.65
May$2.23$2.11$2.08$1.91$2.41$4.12$4.87$4.20$4.04$3.97$3.32$3.56$4.34$5.12$4.60$5.41$6.32$6.28$6.28$6.44$4.14$3.03$2.53$2.14
Jun$3.31$2.16$1.35$1.46$2.02$3.96$5.74$6.71$7.59$7.71$8.54$10.32$11.79$13.09$14.26$16.40$18.16$19.44$19.86$19.74$16.48$10.25$7.68$5.18
Jul$6.66$3.12$1.98$1.83$3.24$7.01$8.47$10.56$14.05$16.44$17.36$21.53$24.53$27.09$27.32$30.15$36.56$39.52$45.07$36.97$24.73$20.01$13.47$9.53
Aug$2.72$1.38$1.20$1.53$2.52$5.92$6.26$6.21$7.78$9.35$9.74$13.09$13.47$14.71$16.34$17.20$19.83$22.42$28.71$20.14$16.31$10.61$7.22$4.75
Sep$1.90$1.67$1.72$2.02$3.39$8.55$13.19$9.15$6.81$7.82$6.78$7.33$6.11$6.45$5.88$6.04$7.54$11.34$14.04$9.69$7.97$5.24$3.67$2.25
Oct$2.82$2.70$2.65$3.14$4.19$8.62$13.66$14.54$7.11$6.11$5.06$4.61$4.12$3.02$3.41$3.72$5.43$10.87$9.15$4.28$3.24$3.18$2.85$2.57
Nov$3.30$3.12$3.06$3.34$3.48$4.67$9.15$11.82$7.81$5.41$4.53$3.95$3.20$2.77$2.98$3.03$5.15$9.39$7.84$5.17$4.27$3.89$3.85$3.64
Dec$6.41$5.99$5.96$5.52$5.53$6.34$9.33$13.00$10.75$9.88$7.82$7.23$6.90$6.37$6.32$7.09$12.90$19.83$13.11$9.53$7.75$6.04$6.15$5.74
SMPgeneration0.39800.5074$6.80$126.1167.4%5,908
Generation-constrained zones lack sufficient local supply. Consistent resources reduce demand permanently, easing the supply gap. Variable resources add local generation capacity.
PrimaryconsistentEnergy Efficiency (Metered), Weatherization, Combined Heat & Power
Permanently reduces demand, closing the local supply gap
SecondaryvariableSolar PV, Wind
Adds local generation to offset imports
TertiarydispatchableBattery Storage, Demand Response
Provides capacity during generation shortfalls

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($18.18/MWh).

SMP (peak: $18.18/MWh)
01234567891011121314151617181920212223
Jan$7.46$8.08$8.20$8.37$9.13$9.75$12.57$17.96$11.91$9.04$7.29$6.99$6.42$6.08$5.55$5.74$6.15$6.56$6.85$8.82$8.63$7.48$7.70$5.83
Feb$4.65$5.22$5.48$5.81$6.91$6.77$7.94$11.03$8.86$6.29$5.80$4.99$4.92$5.10$5.28$5.35$5.68$6.07$5.98$6.55$5.84$5.61$5.51$5.56
Mar$6.34$6.54$6.32$6.55$7.02$8.05$10.60$8.42$5.44$4.85$4.58$4.74$4.99$5.57$6.28$7.24$7.24$7.45$8.64$8.35$7.42$6.67$6.05$6.18
Apr$7.17$7.38$7.81$8.21$8.47$9.79$10.01$7.10$6.12$6.07$6.97$7.66$7.97$8.59$9.34$10.14$10.45$8.67$7.97$8.01$6.52$5.81$5.39$5.67
May$3.73$4.10$3.90$4.48$5.03$6.28$6.82$5.48$5.01$4.11$4.35$5.76$7.51$10.79$13.25$15.43$15.40$13.38$10.76$12.14$9.11$7.09$5.34$4.72
Jun$6.67$5.62$5.19$4.06$3.89$5.50$5.44$5.78$6.34$6.32$6.95$8.43$10.77$11.76$12.21$12.64$12.71$11.31$10.04$11.64$10.83$9.67$10.23$8.32
Jul$4.33$3.14$2.69$2.43$2.31$2.32$2.70$2.35$2.62$2.70$3.62$4.65$5.15$6.12$6.46$7.18$7.46$7.98$9.65$10.97$8.67$7.10$6.98$6.43
Aug$4.27$3.02$2.41$2.12$2.00$2.77$3.71$3.83$4.44$5.13$5.47$5.86$6.43$7.62$8.44$9.71$10.07$13.06$18.18$15.00$10.66$9.53$7.72$5.94
Sep$2.96$2.86$2.70$2.87$2.95$3.51$3.40$3.23$3.95$3.81$4.13$4.50$4.52$5.17$5.54$5.40$5.70$7.44$11.91$7.50$6.04$5.13$4.38$3.39
Oct$5.47$5.43$5.72$6.21$6.69$7.02$6.14$5.87$4.59$4.93$4.78$5.78$6.54$6.67$7.16$7.16$7.36$7.97$8.31$5.96$5.83$3.73$4.97$5.16
Nov$7.67$7.46$7.73$8.49$8.67$8.79$9.77$9.29$6.43$6.12$5.51$5.50$5.62$6.00$6.02$5.75$6.24$8.25$7.99$7.34$6.67$6.75$5.27$5.91
Dec$7.45$7.58$7.73$8.15$8.17$7.93$9.51$9.44$7.10$5.74$5.17$5.20$4.76$5.03$5.02$4.73$5.69$6.41$6.81$6.47$5.12$4.84$5.56$5.49
UPPCgeneration0.32680.5418$4.36$105.5855.8%4,892
Generation-constrained zones lack sufficient local supply. Consistent resources reduce demand permanently, easing the supply gap. Variable resources add local generation capacity.
PrimaryconsistentEnergy Efficiency (Metered), Weatherization, Combined Heat & Power
Permanently reduces demand, closing the local supply gap
SecondaryvariableSolar PV, Wind
Adds local generation to offset imports
TertiarydispatchableBattery Storage, Demand Response
Provides capacity during generation shortfalls

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($14.42/MWh).

UPPC (peak: $14.42/MWh)
01234567891011121314151617181920212223
Jan$3.73$3.80$4.03$4.16$4.48$4.91$5.64$7.12$4.72$3.31$3.21$3.38$3.59$3.35$2.65$2.47$2.48$3.22$3.72$3.23$3.34$3.56$2.98$2.43
Feb$2.01$1.98$2.13$2.09$2.52$2.72$3.03$3.32$3.80$3.25$3.14$2.45$2.57$2.58$2.87$1.77$1.27$1.12$1.25$1.72$1.71$1.64$1.81$2.11
Mar$3.30$3.41$3.31$3.86$4.50$4.95$6.47$4.83$4.02$4.03$3.71$3.73$3.71$3.80$3.94$4.44$4.24$4.30$4.35$4.47$3.83$3.28$3.22$3.36
Apr$3.06$3.28$3.50$3.69$3.63$3.64$3.40$3.79$4.17$3.96$3.92$3.64$4.08$3.67$3.83$4.74$5.17$5.56$5.49$5.73$3.65$2.85$2.27$2.93
May$1.52$1.56$1.66$1.63$1.85$1.69$1.66$1.96$2.18$2.36$2.55$3.98$5.59$9.24$12.05$14.03$14.42$12.08$9.95$10.69$7.11$3.82$2.97$1.74
Jun$2.11$1.91$1.34$1.06$1.13$2.02$1.74$2.32$3.35$3.32$3.17$4.41$6.51$7.58$8.57$9.09$9.99$8.30$6.56$5.97$4.77$3.34$4.18$2.77
Jul$2.28$2.77$2.28$2.53$2.47$2.15$2.66$2.61$2.26$2.78$2.62$2.83$3.44$4.05$3.39$4.79$6.43$6.23$7.13$8.74$6.59$4.73$3.78$3.35
Aug$2.31$1.95$1.77$1.66$1.57$1.98$1.88$3.11$4.91$5.87$6.23$5.69$5.96$6.38$7.03$4.92$4.94$4.31$5.98$5.28$4.13$4.23$3.65$2.63
Sep$1.27$1.05$1.02$1.23$1.67$1.98$1.89$2.40$3.76$4.41$5.68$6.43$6.07$5.84$5.68$5.56$6.75$6.56$9.38$5.54$3.65$2.61$2.94$1.87
Oct$4.31$4.62$5.22$6.05$6.81$6.96$7.52$7.66$6.96$6.99$6.96$7.06$6.93$6.84$7.30$8.07$8.27$9.62$9.40$6.38$5.55$4.42$3.91$3.13
Nov$3.67$3.58$4.16$4.56$5.01$5.24$7.06$7.73$4.64$3.96$3.72$3.52$3.85$3.64$3.30$4.04$4.16$5.96$5.19$4.19$3.53$3.60$2.77$3.34
Dec$4.99$4.93$5.31$5.76$5.70$5.73$7.14$7.39$5.95$5.85$6.11$6.22$6.25$6.97$6.02$5.37$4.59$5.03$4.65$4.89$4.99$4.20$4.52$4.62
WECunconstrained0.18170.4022$2.85$106.0941.5%3,637
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($13.89/MWh).

WEC (peak: $13.89/MWh)
01234567891011121314151617181920212223
Jan$3.02$3.35$3.44$3.71$4.02$4.18$4.63$4.97$2.95$2.63$2.26$1.92$2.01$1.89$1.69$1.61$1.58$1.89$2.39$2.35$2.43$2.56$2.28$2.35
Feb$1.72$1.86$1.93$1.89$2.18$1.97$2.32$2.45$2.38$1.80$1.39$0.74$0.86$0.95$1.11$1.12$1.00$0.94$0.75$1.15$1.19$1.24$1.17$1.28
Mar$3.23$3.10$3.21$3.50$3.99$4.44$5.35$3.95$3.12$3.46$3.17$3.41$3.61$3.87$4.12$4.61$4.35$4.20$3.43$3.61$3.11$2.61$2.82$3.18
Apr$3.27$3.52$3.66$3.88$3.96$4.45$3.87$2.87$2.28$2.21$2.24$2.37$2.65$2.79$3.57$4.52$4.70$4.50$4.04$3.80$2.89$2.41$2.17$2.58
May$1.22$1.18$1.13$1.11$1.27$1.26$1.15$1.21$1.28$1.48$2.13$3.31$4.92$8.41$11.89$13.70$13.89$11.41$8.29$8.21$5.85$3.23$2.12$1.28
Jun$0.72$0.65$0.43$0.40$0.42$0.74$0.72$1.01$1.72$1.63$1.54$1.92$2.26$2.62$3.14$3.51$3.75$3.19$2.32$2.01$1.69$1.27$1.37$0.94
Jul$0.76$0.68$0.56$0.67$0.77$0.81$1.11$0.88$1.17$1.44$1.71$2.22$2.52$2.95$2.56$3.58$4.68$3.92$5.18$4.88$3.41$1.78$1.52$1.10
Aug$0.63$0.54$0.45$0.42$0.45$0.50$0.77$0.92$1.16$1.74$1.86$2.03$2.89$2.57$2.45$2.24$2.33$2.46$3.32$3.00$1.95$1.45$1.17$0.81
Sep$0.98$0.96$0.99$1.33$1.92$2.42$1.32$1.13$1.12$1.31$1.44$1.73$1.82$2.25$2.57$2.79$3.26$3.30$4.83$2.90$1.71$1.11$1.32$0.96
Oct$4.84$4.94$5.21$6.29$7.37$7.05$5.78$4.99$3.45$3.11$2.93$3.16$3.64$3.46$4.00$4.57$4.59$5.57$5.77$3.76$3.17$2.49$2.78$3.23
Nov$3.26$3.45$3.70$3.92$4.03$4.21$3.89$3.99$2.16$1.82$1.46$1.47$1.32$1.53$1.74$2.04$2.32$2.50$2.15$2.51$2.32$2.87$2.99$3.15
Dec$5.10$5.08$5.29$5.90$6.01$5.65$6.58$5.82$3.70$2.80$1.74$1.45$1.68$1.69$1.61$1.81$2.60$3.05$2.78$3.56$4.14$4.10$4.79$4.87
WPSunconstrained0.29840.4483$3.93$105.5753.4%4,674
Unconstrained zones have adequate transmission and generation. Consistent resources provide long-term value through load reduction. DER investment priority is lower here relative to constrained zones.
PrimaryconsistentEnergy Efficiency (Metered)
Cost-effective load reduction with steady EAC generation
SecondaryvariableSolar PV
Clean energy addition with moderate grid benefit

Zone Congestion Heatmap (Monthly x Hourly)

Mean |congestion| $/MWh by month and hour. Red intensity scales to zone peak ($14.50/MWh).

WPS (peak: $14.50/MWh)
01234567891011121314151617181920212223
Jan$3.47$3.78$3.95$4.16$4.64$4.96$5.89$7.37$4.71$3.16$2.91$3.06$2.95$2.68$2.15$1.99$1.98$3.02$3.50$2.87$3.32$3.49$3.13$2.76
Feb$1.73$1.92$2.04$2.06$2.47$2.40$3.00$3.42$3.55$3.22$2.35$1.39$1.48$1.42$1.40$1.39$0.97$1.31$1.31$1.76$1.66$1.57$1.49$1.65
Mar$3.31$3.26$3.32$3.76$4.32$4.97$6.21$4.94$3.74$3.89$3.51$3.66$3.77$3.93$4.29$4.88$4.76$5.30$4.68$4.54$3.86$3.25$3.22$3.36
Apr$3.05$3.30$3.40$3.65$3.57$3.65$3.41$3.01$3.28$3.18$3.13$2.99$3.33$3.42$4.22$5.16$5.58$5.68$5.50$5.66$3.67$2.88$2.32$2.80
May$1.56$1.61$1.65$1.65$1.90$1.62$1.62$1.94$1.91$2.06$2.44$3.68$5.21$8.82$12.01$14.04$14.50$12.14$10.04$10.68$7.26$3.91$2.67$1.65
Jun$1.70$1.42$1.03$0.82$0.86$1.46$1.39$1.58$2.44$2.57$2.64$4.00$6.02$7.22$8.20$8.57$9.56$7.91$5.61$5.30$3.86$2.64$3.37$2.29
Jul$1.58$1.18$0.84$0.87$1.04$1.16$1.69$1.38$1.29$1.69$1.98$2.85$3.18$4.26$3.55$4.78$6.24$5.98$6.94$7.78$6.12$3.71$2.87$2.35
Aug$1.37$1.00$0.92$0.83$0.81$0.94$1.36$2.14$3.18$4.09$4.43$4.53$4.56$4.48$4.54$3.92$4.26$4.02$5.59$4.82$3.51$2.98$2.66$1.75
Sep$1.33$1.14$1.09$1.37$1.90$2.29$1.80$2.07$2.68$3.14$4.22$4.65$4.63$4.72$4.94$5.35$5.88$5.97$8.79$5.20$3.40$2.16$2.57$1.85
Oct$4.49$4.77$5.28$6.14$6.98$6.86$7.07$6.31$5.66$5.60$5.48$5.75$5.73$5.55$5.97$6.76$7.57$8.82$9.34$6.28$5.04$3.84$3.61$3.10
Nov$3.65$3.93$4.34$4.66$5.18$5.63$7.15$7.84$4.26$3.58$3.29$2.98$3.12$2.72$2.78$3.58$4.47$6.11$5.12$4.03$3.51$3.57$2.87$3.49
Dec$5.00$4.99$5.51$5.99$5.86$5.73$7.11$6.99$5.07$4.41$4.13$4.02$3.97$4.00$3.80$3.42$3.32$4.09$3.74$3.69$3.90$3.32$3.89$4.21

Data Center Overlay

68
Midcontinent ISO Data Centers
2,598 MW
Estimated Total Capacity
39
Operational
23
Proposed
Zone Classification Total DCs Operational Proposed Construction Est. MW Top County
AMMOunconstrained770035St. Louis
CONSunconstrained550057Oakland
DEVIunconstrained10010Hinds
EAItransmission10100Jefferson
EEStransmission10010
IPLunconstrained523015Marion
MDUboth11005Richland
MECgeneration8710647Dallas
NIPSunconstrained2441701,714Lake
NSPunconstrained1091035Hennepin
WECunconstrained540190Racine

Visualizations

Transmission vs Generation Scores

Score Comparison

Congestion Heatmap

Congestion Heatmap

Monthly Congestion Trends

Monthly Trends

Scoring Methodology

Transmission Score

Weighted composite of congestion-based metrics:

Congestion Ratio|congestion| / |LMP|30%
Congestion VolatilityStd dev of congestion prices25%
Congested Hours %Hours with |congestion| > $2/MWh25%
Peak/Off-Peak RatioPeak vs off-peak congestion20%

Generation Score

Weighted composite of energy-price metrics:

Energy DeviationZone vs system energy price35%
Energy VolatilityEnergy price std/mean30%
Loss ComponentMarginal loss ratio20%
High Energy Hours %Hours > avg + $3/MWh15%

Classification Rules

both T-score ≥ 0.5 AND G-score ≥ 0.5
transmission T-score ≥ 0.5 AND G-score < 0.5
generation T-score < 0.5 AND G-score ≥ 0.5
unconstrained T-score < 0.5 AND G-score < 0.5